baber/WOPTO huggingface dataset:
Patent GB-416900-A (GB)
Title: Improvements in and relating to electrolytic cells
IPC: C25B9/17
Filed: 1934-03-21
Abstract: 416,900. Electrolytic cells. ARMBRUST, R., 15, Kleiststrasse, Berlin. March 21, 1934, No. 8902. [Class 41.] A cell for electrolysis under pressure, particularly for the generation of hydrogen and oxygen, comprises a series of concentric cylindrical bipolar electrodes b<2> b<3> ..... separated by diaphragms c', c<2> ..... The cell b<1> constitutes the outer electrode and a cone bk the inner electrode. At the ends the electrodes and diaphragms are contracted to form a solid neck. At these points additional metal sheets l<1>, l<2> ..... , m<1>, m<2> ..... separated by the diaphragm material or by other insulation are interposed to serve as " polarization electrodes " for minimizing electrical leakage ; the number should be such that the voltage between adjacent electrodes is not sufficient to effect separation of gas at the ends. Gas-laden electrolyte is conducted to separating chambers q<1>, ql by passages in the top block. To diminish leakage the passages are extended by peripheral sections so arranged that the leakage path between the extreme electrodes is greater than that for intermediate electrodes. The core bk is provided with one or more passages t for supply or circulation of electrolyte, gas or cooling water. In a modification, the electrodes and diaphragms are contracted on to the core at the bottom, but at the top are contracted to form an annular member spaced from the core. The space within the annular member forms one gas-separating chamber and the space outside it the other. The electrodes may be seamlessly drawn or may be riveted or welded. They may be grooved or fluted. Each electrode may consist of a set of slightly conical annular members inserted one inside the other. The electrodes may be provided with hemispherical or elongated projections with sharp or rounded edges. They may consist of corrugated or folded wire fabric or sheet metal preferably with sharp edges or of such sheets engaging plain sheets ; in the latter case closed passages are formed which may be utilized for return, flow of electrolyte. An electrode may be formed by helically winding plain and corrugated metal strips on a core or on a diaphragm of an inner electrode ; two or more strips may be wound in the same or opposite directions with or without overlapping. The diaphragms may be similarly wound. The insulation provided at the ends of the electrode assembly may also be in the form of spiral strips.
Patent GB-765644-A (GB)
Title: Improvements in or relating to devices for handling bulk cargo in ship holds and like spaces
IPC: B63B25/02
Filed: 1955-03-28
Abstract: 765,644. Cargo holds. LEGRAND, P. March 28, 1955 [April 9, 1954], No. 8967/55. Class 113. [Also in Group XXX] A device for handling bulk cargo in a hold 1 comprises an assembly 4, 5 of movable partitions disposed in the vicinity of the hardly accessible portion 2, 3 of the hold and displaceable by a rope or cable 14 in the direction f to displace the cargo in said hardly accessible portion toward the centre of the hold. The partition 4 is pivoted at 7 to the wall 2 and at 6 to the partition 5 the lower edge of which is pivotally attached at 13 to a carriage 10 movable along a rail or runway 9 on the floor 3 so that a pull on cable 14 moves the partitions to position 4<SP>11</SP>, 5<SP>11</SP>. In the embodiment of Fig. 4 a series of partitions 26, the upper end of which is rotatably and slidably mounted at 28 in a vertical guideway 29 while the lower end is mounted on a carriage 10 as above, are moved by a cable 34 to position 26<SP>1</SP> to displace the cargo. Each series is separated by a partition 36. The partitions 26 may be lifted to, and supported in, the horizontal position 26<SP>11</SP> by a beam 43 and shores 42 to form a tween deck which is completed by panels 37. The cable 34 is attached to partitions 26 by a member 32 which may be detached and used in place of the beam 43. The partitions 36 may be detached and used in place of panels 37. The partition 26 may be raised to, and locked in, position 26<SP>111</SP> to facilitate loading of the hold 20.
Patent GB-998838-A (GB)
Title: Light sensitive copying material
IPC: G03F7/12
Filed: 1962-03-08
Abstract: 998, 838. Photo-sensitive compositions. KALLE A.G. March 8,1962 [March 15,1961], No. 8973/62. Heading G2C. A light sensitive material comprises a support bearing a colloid layer containing an aldehyde in admixture with a diazo compound of an amine of formula or a condensation product thereof with formaldehyde; wherein R 1  is an alkyl, aryl, aralkyl, cycloalkyl or heterocyclic radical which may be substituted and R 2  is a hydrogen or a halogen atom, or an alkyl, alkoxy, nitro or carboxyl group and n is 1 or 2, the ratio by weight of aldehyde to diazo compound from 0. 8: 1 to 20:1. On imagewise exposure to light, the layer becomes hardened in the exposed areas and the unexposed areas may be washed off to leave a printing plate. A screenprinting stencil may be similarly formed if a highly porous material is used as the support. Specified colloids are gelatin, polyvinyl pyrrolidone, polyacrylic acid, egg albumen, casein, cellulose ether, regenerated cellulose or polyvinyl alcohol preferably with polyvinyl alcohol and a plasticiser. Specified aldehydes are formaldehyde, acetalde- , hyde, acetaldehyde, propionaldehyde, chloracetaldehyde, croton aldehyde, i-valeraldehyde, glyoxal, glutakialdehyde, cinnamaldehyde, resorcylaldehyde, salicylaldehyde stilbene dialdehyde, tireptnaldialdehyde, furfural and pyridue-4-aldehyde. Printed circuits may be produced by using as a support copper foil laminated to a plastic foil.
Patent GB-259837-A (GB)
Title: Buffers for railway or highway carriages, wagons and such like vehicles
IPC: B61G11/18
Filed: 1926-04-06
Abstract: 259,837. Gauld, D. M. April 6,1926. Buffers.-A buffer plunger tube is pressed from a flat metal plate in one complete piece, and comprises a plain tubular body a of uniform diameter, a flanged open end c, and a closed end b, the closed end afterwards being removed. The flanged end of the tube may be enlarged to take a buffer spindle socket, or the closed end may have the flange 17b, Fig. 17, left on to engage with a retaining socket 17e. A buffer case, socket, or guide is constructed in a similar manner, the flange being shaped and bent back on to the end of the tube to form a base as at c, Fig. 13. Flutes may be formed in the sides of the tube which may act as guides for the buffer plunger and a neck bush 13n formed from a flat plate may be pressed on the tube so that it seats on the shoulder 13d; it may also be provided with a projection 13p which acts as a stop for the shunter's pole.
Patent GB-1142963-A (GB)
Title: Automatic tube lathe comprising devices for holding and cutting the tubes to length
IPC: B23D31/00
Filed: 1966-03-01
Abstract: 1,142,963. Shearing. POLYTYPE A.G. 1 March, 1966 [10 March, 1965], No. 9029/66. Heading B3W. A device for trimming to length a tube 8, which is shown in the drawings as a collapsible tube, comprises a mandrel 1 on to which the tube is pushed, and associated with which are two inclined cutters 6, so that as the tube engages the cutters the part which will subsequently be cut-off is expanded and split by the cutters so that it rotates with the mandrel during the trimming operation. Each of the inclined cutters 6 is attached to a rocker arm 2, 3, the rocker arms being pivotally mounted at 4 on pins which are carried by a mounting ring 5 which is clamped to the mandrel 1. The ends of the rocker arms remote from the cutters engage the inside of a ring 11 which is supported from the ring 5 by resilient pins 12 and is held concentric with the mandrel by deformable spacing blocks, made, for example of polyvinylchloride. A roller 14 engages the outside of the ring 11 so that as the assembly of the mandrel 1 and the two rings 5 and 11 is rotated the ring 11 is displaced and the cutters 6 are lifted in turn. The tube 8 is held on to the cutters 6 by springs 7. The cutters 6 may have a thread formed on their edges so that the tube 8 is screwed on to the mandrel during the trimming operation. The trimming operation is carried out by a cutter unit which comprises a sharp-edged backing plate 33, Fig. 9, which is rotatably mounted at an angle to the axis of the tube, a stationary cutting tool (37) and a polishing disc 38. The backing plate 33 engages the tube and is rotated thereby, the engagement pressure being sufficient to cause the plate to indent and fracture the tube, so that the cutting tool 37 merely trims the cut end. The polishing disc 38 is fixed and is therefore heated by friction when it engages the tube. This heating is stated to improve its action. In a modification, Fig. 5 (not shown), the end of the tube is pushed over a pair of cutters (20) attached to the mandrel (16) and is sheared by the cooperation of these cutters with a further pair of cutters (25) mounted in a ring which is concentric with and axially slidable on the mandrel.
Patent GB-251953-A (GB)
Title: Improvement in gears and method for producing the same
IPC: F16H55/08
Filed: 1926-04-07
Abstract: 251,953. Gleason Works, (Assignees of Wildhaber, E.). May 11, 1925, [Convention date]. Gear-cutting. - Relates to toothed gearing of the kind comprising conical gears the axes of which are perpendicular or inclined but do not intersect and which, in the limit, becomes crown wheel and pinion gearing. The larger wheel 32, Fig. 4, or 106, Fig. 11, has straight radial teeth and the other wheel or pinion 34, Fig. 4, or 107, Fig. 11, has helical or curved teeth formed by moving a tool 105 representing a tooth of the first wheel or gear across the face of the pinion blank while the blank is rotated on its axis 35 or 108 and revolves about the offset axis 33 or 109 of the gear, maintaining the same relative positions as do the finished wheels when in working engagement. The side faces or flanks of the wheel teeth are preferably plane and the pinion teeth are so formed as to match the gear teeth along the whole length of the tooth spaces. According to the Specification as open to inspection under Sect. 91 (3) (a), the straight teeth on the wheel 32 may be non-radial. This subjectmatter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 11189/14.
Patent GB-1196575-A (GB)
Title: Open-Mesh Sheet Material Forming Machine
IPC: B29D30/06
Filed: 1969-02-20
Abstract: 1,196,575. Slitting and expanding webs. J. W. HETHERINGTON. 20 Feb., 1969, No. 9187/69. Heading B4B. A machine 10 for forming continuous open mesh material 36, e.g. from plastics sheet or metal foil, comprises sheet supply means 12, slitting means 22 for repeatedly forming pairs of transverse rows of discontinuous slits, Fig. 10, first roller means 40 receiving the slitted sheet material 36, second roller means 48 moving at a greater speed than the first to stretch the sheet material into a continuous open mesh, Fig. 11 (not shown), wind-up means 54 receiving the open mesh web so formed, and tension-responsive means 58 controlling the speed of said wind-up means such that it is inoperative above a predetermined web tension. As shown, Fig. 7, the slitting means 22 comprise a fixed spacer die 206 co-operating with blades 202, 204 mounted on a bar 24, upwardly biased, and rigidly bearing pads 92, 94 which are downwardly actuated by cams 88, 90 on a main drive shaft 82 to effect the cutting stroke. Material is fed by a roller 18, intermittently actuated in synchronism with the slitting means, a freely rotatable roller 20 being spring-urged against the upper input sheet face to ensure contact. The first output roller 40 may be frictionally driven at constant speed by an auxiliary drive 42 such as an electric motor, a variable drive 50 to the second roller 48 enabling the required differential speed to be set. The wind-up roll 54 is controlled by an electromagnetic clutch (270), Fig. 9 (not shown), set to disengage at a predetermined tension by means of an electrical clutch control (272). In a modified construction, Fig. 12 (not shown), a second stripper bar c.f. 210 is provided, and the rollers 40, 48 may be cork-sleeved.
Patent GB-969304-A (GB)
Title: Organomercuric hydrazine compounds
IPC: C07F3/10
Filed: 1963-03-08
Abstract: The invention comprises compounds of the formula <FORM:0969304/C1/1> where R, R1, R11 and R111, which may be the same or different, stand for alkyl, alkenyl, cycloalkyl, aryl, aralkyl or heterocyclic radicals, which may be further substituted by halogen atoms, or hydroxyl, aryloxy, acyloxy, nitro, amino, ester, or carbonyl radicals, and are preferably alkyl containing 1-4 carbon atoms, cycloalkyl containing 5-6 carbon atoms, or phenyl; and X and Y are carbonyl or sulphonyl groups. Examples specified inter alia are N-N1-bis-(ethyl mercuric)-N-N1-bis-(methane sulphonyl-hydrazine, N-N1-bis-methylmercuric)-N-benzoyl -N1- benzene-sulphonyl-hydrazine, and N-N1-bis(methylmercuric) -N- acetyl -N1-benzoylhydrazine. They may be produced by reacting bis-acyl hydrazines or their alkali metal salts with organomercuric hydroxides or salts respectively, or by reacting the free hydrazines with organomercuric salts treated with alkali. The reaction may be effected, in an inert solvent or by mixing the solid reactants with an inert solid diluent, at ambient or slightly elevated temperatures. Lists of suitable reagents, solvents, and diluents are given. The compounds are used as fungicidal and bactericidal seed dressings.ALSO:Seed dressings for treating wheat, oat, barley and beet seeds comprise organomercuric hydrazine compounds of formula <FORM:0969304/A1-A3/1> where R, R1, R11, R111, which may be the same or different, stand for alkyl, alkeayl, cycloalkyl, aryl, aralkyl, or heterocyclic radicals, which may be further substituted by helogen atoms, or hydroxyl, aryloxy, acyloxy, nitro, amino, ester, or carbonyl radicals, and X and Y are carbonyl or sulphonyl groups (see Division C2).  They may be applied as powders, solutions, emulsions, suspensions, or pastes, alone or in combination with other protectants.ALSO:A fungicidal and bactericidal composition comprises organomercury compounds of formula <FORM:0969304/A5-A6/1> where R, R1, R11 and R111, which may be the same or different stand for alkyl, alkenyl' cycloalkyl, aryl, or alkyl, or heterocyclic radicals, which may be further substituted by halogen atoms, or hydroxyl, aryloxy, acyloxy, nitro, amino, ester, or carbonyl radicals, and X and Y are carbonyl or sulphonyl groups (see Division C2); and a solid or liquid diluent or carrier, e.g. talc. It may be applied as powder, solution, emulsion, suspension or paste, alone or in combination with other plant protectants.
Patent GB-314468-A (GB)
Title: Improvements in apparatus for winding wire on to bobbins
IPC: B65H54/52
Filed: 1928-03-28
Abstract: 314,468. Gaskell, J. March 28, 1928. Winding-machines.-In apparatus for winding wire on to bobbins, the bobbin 2, Figs. 1 and 3, is freely mounted on the spindle 1, bearing thereon at its opposite ends, and is pressed into contact with a shoulder 1<a> formed on the spindle, the contacting surfaces forming a friction clutch through which the bobbin is driven. The pressure-member comprise,s a twoarmed lever 8, 8<a> pivoted at 9, the arm carrying a ball-bearing 11 in which a thrust-block 12 is rotatably supported. A weight 13 is adjustable along the arm 8<a> and in the non-working position, shown dotted Fig, 1, the member rests on a stud 15, the bobbin 2 then being movable endwise on or off the spindle 1. Alternatively the pressure may be exerted by a spring while the members constituting the friction clutch may both form portions of the spindle 1. The Provisional Specification describes a form of clutch in which the members are conical.
Patent GB-584915-A (GB)
Title: Improvements in controlling apparatus for electric motors
IPC: H02P1/18
Filed: 1943-06-11
Abstract: 584,915. Controllers. GENERAL ELECTRIC CO., Ltd., and GARRARD, C. J. O. June 11, 1943, No. 9419. [Class 38 (iii)] With auxiliary switches.-A control system for a direct current shunt motor comprises a starting switch for the armature circuit, a speed-regulating rheostat in the shunt field circuit, and a second switch for inserting an armature resistance at starting, all operated by a single movable member. As shown, the rheostat indicated by the studs 4 is varied by the arm 5. When the arm is moved anti-clockwise to a position of low rheostatic resistance, a roller 23 thereon engages a forked end 21 of a pivoted member and opens a switch 12 to place resistance in the armature circuit. The pivoted member is biassed to a position wherein the switch 12 is closed by a spring 24. A contact 25 on the movable arm touches a fixed contact 7<1> to close a circuit which energizes a relay closing a main switch in the armature circuit to start the motor. The arm is held in this position whilst the motor starts and is then released so that the spring 24 moves the arm 5 clockwise into a position corresponding to low motor speed and closes the switch 12 to short circuit the armature resistance. Thereafter normal speed control is provided by further movement of the arm 5. The starting switch may operate a relay which closes both a main armature switch and a hold-in contact for the relay ; a push-button to release the relay may be provided at a position remote from the motor. The control system illustrated in the Figure accompanying the Provisional Specification shows the motor having additionally a series field winding. The system further comprises a reversing switch and pilot lamps to indicate closure of the main armature switch. The usual overload relay, discharge resistance for the shunt field winding, and fuses are shown.
Patent GB-774184-A (GB)
Title: Improvements in or relating to moulds for metal casting
Inventor: SHAW NOEL
IPC: B22C23/00
Filed: 1954-03-31
Abstract: A moulding process comprises investing a pattern with two different refractory mixes, one of which is formed into a layer in contact with the pattern and the other is formed as a backing to said layer, the layer in contact with the pattern being composed of a highly refractory aggregate and a lower alkyl silicate containing sufficient aqueous acid to hydrolyse the same, and the backing consisting of a normal foundry type silica core sand and any desired binder, and when the alkyl silicate has set by hydrolysis and gelling of the binder, igniting said layer to burn off the alcohol released in the hydrolysis.  The backing layer may be bound with sodium silicate and hardened by CO2 gas, and the lower alkyl silicate is preferably ethyl ortho-silicate.  In one method a pattern is encased by a layer of plaster or modelling clay and sand-sodium silicate mix rammed thereabout and hardened by CO2 gas.  The backing is removed, the plaster or clay stripped from the pattern, the backing replaced and the space formerly occupied by the plaster or clay filled with the acidified ethyl silicate refractory mix.  In a modification the sand-sodium silicate mix is rammed about an oversize pattern which is then replaced by the original pattern and the space between the latter and the hardened mix filled with the facing layer.  After ignition of the alcohol the moulds may be baked.  The mix for the facing layer may be as described in the parent Specification.
Patent GB-399793-A (GB)
Title: Improvements in the manufacture or treatment of aliphatic anhydrides
Filed: 1932-04-01
Abstract: Aliphatic anhydrides are produced by thermal treatment of aliphatic acids at temperatures above 550 DEG  C. in presence of catalysts promoted by non-reducible metal oxides other than tungstic acid, the term metal oxides not being intended to include oxides of arsenic or antimony.  The catalyst is in greater quantity than the promoter, which may be added to the extent of 2-40 per cent for example. Suitable mixtures are molten sodium metaphosphate containing 2 per cent of normal sodium phosphate and 5 per cent of lime or 4 per cent of titanium dioxide; molten sodium metaphosphate and 7 per cent of strontia; and solid calcium tungstate with 10 per cent of lime or 5 per cent of alumina or 13 per cent vanadium pentoxide.  Other catalysts mentioned to which the oxides are to be added are phosphates, arsenates, antimonates, tungstates (other than alkali tungstates) and borates such as alkali borates.  Calcium tungstate, precipitated from sodium tungstate solution by calcium chloride may be kneaded with the oxide, or may be dried and impregnated with lime water, dried and again impregnated until the desired proportion of lime is attained.  The acid vapour may be preheated, for instance, to 250-350 DEG  C. by various methods, and may be admixed with inert gases or with steam.  Preferably the quantity of water vapour may be 5-25 per cent of the acetic acid as described in Specification 399,792.  The anhydride may be separated from the vapours in any suitable way, for instance as described in Specifications 256,663, 279,916, 289,972, 298,667, 303,772, and 310,863.  [all in Class 2 (iii), Dyes &c.]. Specifications 312,587, 314,555, 317,342, [all in Class 2 (iii), Dyes &c.], and 340,484 also are referred to.ALSO:Catalysts for the production of aliphatic anhydrides from the corresponding acids are promoted by adding non-reducible metal oxides other than tungstic acid and arsenic and antimony oxides. The promoter may be 2-40 per cent of the catalyst.  Suitable mixtures are molten sodium metaphosphate containing 2 per cent of normal sodium phosphate and 5 per cent of lime or 4 per cent of titanium dioxide; molten sodium metaphosphate and 7 per cent of 0  strontia; and solid calcium tungstate with 10 per cent of lime or 5 per cent of alumina or 13 per cent of vanadium pentoxide.  Other catalysts to which the metal oxides are to be added are phosphates, arsenates, antimonates, tungstates (other than alkali tungstates), and borates such as alkali borates.  Precipitated calcium tungstate may be kneaded with the oxide or may be dried, impregnated with lime water, dried and again impregnated until the desired proportion of lime is attained. Specifications 312,587, 314,555, 317,342, [all in Class 2 (iii), Dyes &c.], and 340,484, [Group IV], are referred to.
Patent GB-116717-A (GB)
Title: Stern Tubes and their Stuffing Boxes.
Inventor: FUKAO JUNZI
IPC: B63H23/36
Filed: 1918-06-11
Abstract: 116,717. Fukao, J. June 12, 1917, [Convention date]. Draining. - Relates to stuffing-boxes for the after ends of stem-tubes and consists in means for leading into the tunnel the leakage oil and water either together or separately. In the construction shown in Fig. 2, d is a protecting tube for the shaft and e, e<1> are rings rotating with the shaft. They are pressed apart by springs s, one against a surface on the box c and the other against a ring j secured to the end of the sterntube bush b<1>. Packings k are placed between the tube d and the rings. A rib r in the lower part of the box separates the water leaking through the end of the box from the oil leakage. The water is conveyed by passages m in the box and stern tube to a pipe m<1> terminating in the tunnel, and a passage n and pipe n<1> convey the oil. Pipes may replace the passages in the stern tube, and the oil and water may be led away together and subsequently separated. The box can be cleansed by forcing air or water through a pipe and passage p.
Patent GB-274815-A (GB)
Title: Electrical contact relays
IPC: H01H50/30
Filed: 1927-04-07
Abstract: 274,815. Electrical Research Products, Inc., (Assignees of Curtis, A. M.). July 24, 1926, [Convention date]. Electromagnets. - The armature 34 and pole-pieces 52, 53 of an electromagnetic relay for use in high-speed telegraphy are formed of " Permalloy " laminations separated by sheets of heat-resisting material such as mica, so that these parts may be heattreated after assembly. Specifications 184,804, 188,688, [Class 36, Electricity, Conducting &c.]. 243,787, [Class 40 (iv), Telephones &c.], and 260.946 are referred to.