baber/WOPTO huggingface dataset:
Patent GB-1308992-A (GB)
Title: Rotary valves
IPC: B21J5/12
Filed: 1970-02-18
Abstract: 1308992 Rotary valves; power steering A E  BISHOP 18 Feb 1970 [26 Feb 1969] 7827/70 Heading B7H  A rotary valve, particularly for vehicle power steering systems, comprises co-operating relatively rotatable valve members each having a port groove arranged for overlap relation when the valve is centred and which grooves extend transverse to the direction of relative valve member movement, one of the grooves comprising a recess having the transversely extending edge thereof relieved for at least part of its length in an elongated curve along the length of the edge and having an abrupt recess. As shown in Figs. 3, 3a, the groove 11 of rotatable valve core 10 co-operates with sleeve port 13 in their centred position, the groove side having a logarithmic scroll 11d, Fig. 7. As the valve closure approaches overlap at the point 11f, an abrupt recess in the form of a window 11g comprises the only flow path. Preferably, the bottom surface 10g, Fig. 3a, of the recess comprises a ramp approximately parallel to the sleeve surface 13a. The port form of Fig. 7 may be changed to place the window 11g in the middle of the  groove length. As shown in Fig. 1, rolling ap-  paratus comprises a collet 20 which carried by a sleeve 21 and reacting against a chuck 22 grasps a valve core 10. Six equally spaced rolling dies 25 are each carried in a block 27 pivotal about a fulcrum 28 secured to the carrying block 29. Clockwise pivotal motion is given to blocks 27 by means of a piston 30 carrying cam projections 31 which co-operate with pivot pins 27a. Piston 30 simultaneously carries chuck 22 and workpiece 10 with it. Return movement of the die blocks is accomplished by retractor 35 which is moved to the right by means of sleeve 34 carrying cam 38 which pivots retractor 39. The rollina dies have an arcuate surface 26 shaped to modify the valve core groove to its final desired form. Final grinding removes upset material from the periphery of the valve core. As an alternative to the rolling technique the longitudinally extending groove may be modified to the desired contour by an electric spark gap apparatus or an end mill of extremely small radius.
Patent GB-332648-A (GB)
Title: Improvements in apparatus for magnification and direction of sound, as applied to gramophones, wireless loud speakers, or any instrument in which sound waves are transmited
IPC: G10K13/00
Filed: 1929-05-13
Abstract: 332,648. Warren, S. R. May 13, 1929. Diaphragm horns. - Sound magnifying and directing apparatus for gramophones, wireless loud-speakers, and the like comprises a series of tubes d - - h arranged concentrically around a cone b, the apex of which extends to, or substantially to, the entrance to the tube, and with opposite ends connected together in alternation by annular rings c<1> - - c' to form a continuous conduit possessing a regular ratio of expansion. The apparatus may be made in two parts by assembling the tubes g, h and cone b as a unit with struts or spacers i, and subsequently assembling this in position with another unit comprising the tubes d, e, f, which may be mounted with a conduit for connection with the gramophone. The spaces between the tubes may be solid or hollow.
Patent GB-551522-A (GB)
Title: Improvements in and relating to the method of and means for the fabrication of moulded bodies, applicable to structural and other purposes
IPC: B29C41/04
Filed: 1941-06-24
Abstract: 551,522. Centrifugal moulding-machines. WATSON, C. W. June 24, No. 7922. [Class 87 (ii)] Moulds M, slidably received and positioned by rails s secured to the rotor casing J, are located between the casing and a cylinder K having apertures p through which clay &c. passes from the interior of the rotor into the moulds. The cylinder K breaks up and distributes the clay. The clay is excluded from the intermould spaces 40 by resilient members 18, Fig. 4, or 53, Fig. 13. The inner ends of the moulds seat on curved, bevelled, rigid or elastic members 43 interposed between the mould ends and the cylinder K, or the cylinder K may be a polygon on the sides of which the mould ends seat. The excluders 53 and mould seats 43 may be integral with each other. Each mould comprises a top A, two sides B and two ends C, the bottom 65 being open or partly closed by a bridging element or a diaphragm. The top has rolled edges v embraced by curved formations w on the sides, and the ends have rolled edges 20 embraced by other curved formations 15 on the sides. Between the sides and ends, and secured to either, are disposed flat springs, which hold the sides and ends in position. The formations w, 15 and the rolled edges v, 20 may be divided along their length, and may be constructed hingewise. Gaps x, x enable the sides to swing outwards to facilitate removal of a moulded body. Channels 14 in the sides B receive flanges 38 on the rails s. A projection y on the top facilitates withdrawal of the mould. A separate configured plate may be secured, as by dovetails and bolts, to the inside of the mould walls. Flanges 17 on the sides engage the excluders 18, 53. Channels 24 shape the moulded product ; such channels may be provided on the exterior of the cylinder K or on an element bridging the opening 65. For producing hollow bodies, cores may be used in conjunction with the moulds. Each end of the casing J is secured to a flanged ring b, Fig. 3, to which is fixed an annulus D having a tread n which runs on driven rollers. The moulding space is closed by an end plate g secured to the annulus D by bolts f or, in the modified form shown in Fig. 15, by bolts 49 entering keyhole slots 47 in the plate. Heated liquid or gas, e.g. steam, may be introduced into the rotor after moulding, for seasoning purposes, by way of an aperture 64 in the plate. An expanding ring i, which may be elastic, prevents endwise movement of the moulds. An expanding ring E, split at 45, holds the ends of the (split) cylinder K against a reinforcing angle iron ring h secured to the plate g. Expanding rings 36 help to retain the moulds in place. Pins j carried by the angle iron h coact with channels 37 in the ring E to guide it into position. The edges F, H, of the split cylinder K may be united by a tongue and groove joint. In use, the rotor is rotated initially at a relatively slow (feeding) speed and finally at a relatively high (consolidating) speed.
Patent GB-549314-A (GB)
Title: Improvements in or relating to snap action electric switches
IPC: H01H23/02
Filed: 1941-06-25
Abstract: 549,314. Snap-action switches. ARNOLD, C. L., DOWSETT, R. W., and M.K. ELECTRIC, Ltd. June 25, 1941, No. 7954. [Class 38 (v)] The inner end of a pivoted operating lever 3 passes over a spring pressed pin or roller 13 so as to snap a bridge contact 11 formed on the end of the' lever 3 between two pairs of contacts 1, 2. The roller slides at its end in guides mounted on the body and the spring bears at one end on a fixed part of the switch.
Patent GB-412712-A (GB)
Title: Improved means for supporting electric conductors
IPC: H01B17/24
Filed: 1933-03-16
Abstract: 412,712. Insulating clamps. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., and BROWN, A. P., Hamilton House, Victoria Embankment, London. March 16, 1933, No. 8025. [Class 36.] An insulating-clamp, particularly for securing an overhead conductor 4 to a supporting pole 5, comprises an insulating-base 1 to which the conductor is clamped by a U-shaped clamping member 2 of insulating material, the member 2 fitting over the conductor and being drawn into a cavity 6 in the base 1 by a bolt 3. The bolt 3 passes through the cavity 6 and is formed with a hooked end 11 into which the member 2 fits. The bolt may, as shown, secure the clamp to the pole. A web 15 may extend across the cavity 6 to strengthen the base and to provide additional clamping surface. The rear face of the base 1 may be dished or otherwise formed to ensure good contact with the pole. In modified constructions the cavity 6 may have no upper wall and the base may be attached to the pole independently of the bolt 3.
Patent GB-130929-A (GB)
Title: A Device for Retaining Neck-ties in Position.
Inventor: BLOMGREN GUSTAV AUGUST FRITHIO
IPC: A41D25/12
Filed: 1919-03-31
Abstract: 130,929. Blomgren, G. A. F. March 31, 1919. Necktie-retainers.-A necktie-retainer consists of a length of wire or like resilient material, bent to form a loop 1 to engage the stud, the arms 3, 4 being bent at right angles at 5, 6 and then turned upwards and crossed at 7, the extremities being then bent around the arms 3, 4 and pointed at 9, 10. On pressing together the parts 5, 6, the points 9, 10 are separated, as shown in Fig. 4, when the tie knot may be pressed against these points which enter the knot on releasing the parts 5, 6.
Patent GB-1082777-A (GB)
Title: Keyboard mechanism for generating code combinations
IPC: B41J7/32
Filed: 1965-05-03
Abstract: 1,082,777. Typewriters. ING. C. OLIVETTT & C., S.p.A. May 3, 1965 [May 4, 1964], No. 8099/67. Divided out of 1,082,776. Heading B6F. The subject-matter of this Specification is identical with that of Specification 1,082,776, but the claims differ.
Patent GB-140456-A (GB)
Title: Improvements in means for controlling humidifying systems
IPC: G01N19/10
Filed: 1920-03-18
Abstract: 140,456. Curry, M. Dec. 5, 1917, [Convention date]. Hygrometric apparatus.-Apparatus for automatically controlling a humidifying system in order to maintain the hygrometric state between predetermined limits comprises humidifiers 1, the supply of water to which is controlled by a balanced valve 3 having an arm 4 connected to a chain 6, which is connected to cranks 8, 9 carried by an electrically-controlled spring-operated wheel 12. The wheel 12 has two ratchet teeth 14, 14' adapted to be engaged by a pawl 15 of magnetic material, and also has two conducting segments 16, 16<1> respectively adapted to complete circuits through wires 17, 18 and 17, 19. The wire 17 is connected to an electro-magnet 15<1> and to the casing 20 of a recording hygrometer 23. The pointer arm 24 of the hygrometer operates an arm 27 from which depend two wires 28 passing into mercury-cups &c. at the upper ends of adjustable contact-screws 30 to which the wires 18, 19 are connected. The screws 30 are carried by an insulating-member 32 pivoted at 34 and adjustable by a screw 36 so as to permit the arm 27 to be in its mean position parallel to the member 32 for any predetermined position of the pointer 24. When the humidity falls below this predetermined value, circuit is completed through the wires 17, 18 and the wheel 12 turned to open the valve 3 and to bring the segment 16' opposite the wires 17, 19. When the humidity exceeds the predetermined value, circuit is completed through the wires 17, 19 and the valve 3 is closed. When fans 41 are provided on the humidifiers, their circuits are controiled by a switch 43 adapted to be bridged by a member 44 on the arm 4. In a modification, the arms 28 are replaced by hanging chains, the lower ends of which are adapted to contact with convex upper surfaces of the conducting screws. Both forms of contact described are such that the arm 24 can continue its movement after contact has been effected.
Patent GB-755322-A (GB)
Title: Improved vitreous objects
IPC: C04B30/02
Filed: 1952-03-31
Abstract: 755,322. Extruding. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE SAINTGOBAIN, CHAUNY & CIREY. March 31, 1952 [March 29, 1951], No. 8192/52. Class 83 (4). [Also in Group XXIII] In a vitreous product having layers of different thermal diffusivity, for use as a lubricant in the hot extrusion of metals, at least one of the layers is formed of fibres of vitreous mineral material (see Group XXIII). The article is disposed between the ingot to be extruded and the extrusion orifice, the diffusivities of the glass being such that a uniform layer of lubricant glass is applied right up to the end of the extrusion. A layer of very low diffusivity is used adjacent the extrusion orifice, and the layer of highest diffusivity adjacent the ingot. Specifications 607,285, 661,555, 663,357. and 747,961 are referred to.
Patent GB-108668-A (GB)
Title: Improvements in or relating to Surveying and other Reflecting Instruments for the Measurement of Angles.
Inventor: GOSSELIN BENOIT JOSEPH XAVIER
Filed: 1917-06-08
Abstract: 108,668. Gosselin, B. J. X. Aug. 11, 1916, [Convention date.]. Angle-measuring instruments.-Relates to instruments for measuring the angle at the observer's position between lines drawn from two distant objects, and consists in an arrangement whereby angles up to 360 degrees can be measured by means of a graduated are not subtending necessarily more than 45 degrees. Upon a frame B, carrying a graduated are S of about 45 degrees, are pivotally mounted two mirrors M, P, projecting to different extents above the surface of the frame, as shown in Fig. 2, their planes remaining invariably perpendicular to the plane of the frame and graduated limb. One mirror, M, is stationary during the coincidence observation, and the other mirror P is borne upon an alidade D having a vernier moving over the graduated arc between limits determined by two micrometrically-adjusted stops Q, T. Each mirror is mounted upon its rotatable conical axis by means of a resilient adjustable platform K, whereby errors of the mirrorplanes may be corrected; the mirrors may be rotated by milled hand-wheels E, F, for clamping by screws Z, V in any desired position, provision being made for rendering the index mirror P rigid with or releasing it from the alidade. The telescope L has a regulating-screw R enabling it to be so positioned that views from both mirrors come within the field. In use, the mirrors are adjusted so that the images of the two objects are caused to coincide in the telescope. The angle between the mirrors, which is half that between the objects, is measured by the angle through which the alidade must be turned to produce coincidence of the images of a very distant object. If this angle exceeds that of the divided arc, the index mirror is repeatedly moved, for which purpose it is unclamped from the alidade, and then reclamped to the reset alidade, between the movements. In modified forms, the dividing plane of the telescope field contains the axes of the mirrors, the arc may be increased to 180 degrees, and a double-reading complete circle may be employed.
Patent GB-140602-A (GB)
Title: Improvements in or relating to taps or valves
IPC: F16K27/06
Filed: 1919-04-02
Abstract: 140,602. Stansfield, A., and Meters, Ltd. April 2, 1919. Connecting to supports. -A domestic water-tap is formed at the back with an extension d having a bracket b thereon whereby the tap may be screwed to a support to relieve the strain on the spigot attachment to the service-pipe c.
Patent GB-657045-A (GB)
Title: Improvements relating to the treatment of sulphur-containing materials
IPC: B28B21/52
Filed: 1947-03-26
Abstract: Sulphur compounds, other than oxides, which are present in gases or vapours which also contain oxygen, e.g. wood pulp digester gas or coke oven gas, are converted to elemental sulphur and/or sulphur dioxide by passing gases or vapours at a temperature above 80 DEG  C. over a catalyst which is a mixture of at least one alkali carbonate and catalytically active metallic iron previously completely sulphur-fouled by treatment with gases containing compounds of sulphur other than oxides of sulphur at a temperature between 80 DEG and 400 DEG  C.  The sulphur compounds are changed, according to temperature conditions, to sulphur dioxide and/or elemental sulphur, which remains in the effluent gas until removed by conventional means, e.g. cooling or scrubbing.  If, in the preparation and/or use of the sulphur-fouled catalyst, the temperature is at any time allowed to exceed 260 DEG  C., the tendency, which increases with the temperature, is to the formation of sulphur dioxide, but if the temperature is kept below 260 DEG  C., the tendency is to the formation of sulphur.  In an example, the catalyst is prepared by making one part of sodium carbonate and two parts of iron oxide into a stiff paste with water or a low-boiling-point solvent for the carbonate, such as lower aliphatic alcohols, and, if desired, with a filler such as diatomaceous earth, baking the paste, crushing, and reducing the iron oxide to catalytically active iron by treating with blue water gas for about 6 hours at a temperature of from 210-250 DEG C., the formation of the active iron being shown, after about 3-5 hours, by a sudden rise in temperature.  Hydrogen or carbon monoxide alone may be used instead of water gas, in which case the temperature rise will not occur.  The catalyst is then sulphur-fouled by treatment with wood pulp digester gas, the fouled catalyst, after an interval during which the effluent gas contains unchanged the sulphur compounds of the input gas, converting the compounds to sulphur and/or sulphur dioxide.  In another example, the catalyst is prepared by melting ferric nitrate and making it into a stiff paste with diatomaceous earth. The paste is then heated to about 300 DEG  C. to convert the ferric nitrate to iron oxide, the dried paste then being immersed in a strong solution of sodium carbonate, removed from the solution, baked at about 300 DEG  C. and pelleted.  The pellets are treated with hydrogen or other reducing gas to reduce the oxide to active iron. Sulphur fouling is then effected.  If cyanides are present in the original gas, they must be removed before sulphur purification is started.
Patent GB-1505356-A (GB)
Title: Spray apparatus
IPC: B05B3/08
Filed: 1975-02-27
Abstract: 1505356 Crop sprayers HORSTINE FARMERY Ltd 23 Feb 1976 [27 Feb 1975] 8300/75 Heading A1D [Also in Division B2] Apparatus suitable for spraying crops comprises upper and lower discs 33, 34, Fig. 2, mounted in vertically spaced relationship on a rotatable common drive shaft 32, a pipe 24 for supplying flowable material to the upper surface of the upper disc 33, and a mask 35 having a cylindrical portion 35a surrounding the upper disc 33 and a lower frusto-conical portion 35b terminating in an annular reservoir 35e, the cylindrical portion 35a having two slots 35g, (35h), Fig. 3 (not shown) whose total circumferential length is about half of the circumference of the cylindrical portion 35a so that about 50% of the material centrifuged from the upper disc 33 is discharged through said slots, the remaining material being collected in reservoir 35e whence it is discharged through a pipe 36 onto the lower disc 34 and is centrifuged therefrom to produce a uniform spray pattern on which the spray pattern produced by the material discharged through the slots is superimposed. The slots 35g, (35h) are preferably of unequal (circumferential length and are disposed such that the plane passing through their mid-points also passes through the axis of rotation of the shaft 32 and is off-set from the direction of displacement of the apparatus over the surface to be sprayed.  Crop-spraying apparatus. Fig. 1 shows apparatus comprising three spray:,assemblies A. B and C mounted on a frame 11 supported by ground wheels 12 and 13, the frame also supporting a tank 14 for liquid chemical aid and a motor 15 to drive the spray assemblies via bevel gears. The supply of liquid to the spray assemblies is controlled by metering valves 27, 28, 29 and is directly related to the ground speed of the vehicle. The height of the spray assemblies above the ground may be adjustable.
Patent GB-862730-A (GB)
Title: Improvements in or relating to an arrangement of instruments for use in examining and testing the eyes
IPC: A61B3/18
Filed: 1959-03-10
Abstract: 862,730. Sight testing apparatus. OCULUS OPTIKGERATE G.m.b.H. March 10, 1959 [March 10, 1958], No. 8302/59. Class 97(1) The apparatus comprises several instruments mounted on a common stand so that they may be used alternatively. As shown, a column 12 movable on a table-top 1 carries an arm 16 with a stud 17 on which an instrument holder 19 is rotatable. To this holder there are secured arms 20, 21, 22 and 23 carrying respectively a slit lamp 24, an ophthalmoscope 25, an ophthalmometer 26 and a lens determining instrument 27. Also carried by the stud is an arm 28 supporting a binocular magnifier 30 on the same level as a television camera 33 which is mounted on the column 12 so that it may be disposed either in front of the magnifier 30 or directly in front of the viewing aperture of the particular instrument being used so as to transmit an image of the eye to a screen 35. The column 12 is adjustable by levers 13, 14 longitudinally and transversely of the table-top 1 at which the patient is seated on an adjustable stool. The table-top 1 also supports at 6 and 7 an adjustable chin rest 8 and a forehead rest 9.
Patent GB-936327-A (GB)
Title: Improvements in or relating to propulsion means for aircraft
Inventor: BALLANTYNE DAVID HAVELOCK
IPC: F02K1/15
Filed: 1962-03-03
Abstract: 936,327. Jet propulsion plant. ROLLSROYCE Ltd. March 3, 1962, No. 8323/62. Class 110 (3). Aircraft propulsion means comprises a plurality of gas turbine engines 10, 11, actuating means 15 to vary the area of the nozzles 12 and control means to control the actuating means including a single over-riding control 22 which causes the actuating means 15 to actuate nozzles on all the engines to their minimum area condition. Each engine nozzle has a flap 13 and the actuators 15 are connected to valves 18 which connect the actuators alternatively with connections 19 of the outlet of a pump and reservoir 21 or with connections 20 to the inlet thereof. Pressure fluid controlled by the valves 18 moves the ram of the actuator 15 to an intermediate position to move the flap 13 from the position 13<SP>1</SP> to 13, and pressure fluid controlled by the valve 22 moves all the actuator rams to the limit of their travel to move the flaps to the position 1311. Hence at take-off flaps are in the position 13 and in the event of an engine failure operation of the valve 22 moves the flap 13 so as further to reduce the nozzle area of the operative engine(s). In an alternative embodiment two flaps per nozzle are provided, the first of which has its own control valve while the second is connected to a common control valve which admits pressure fluid to both flaps in each nozzle when opened.
Patent GB-868470-A (GB)
Title: New perinone dyestuffs capable of being fixed on the fibre
IPC: C09B62/002
Filed: 1958-03-14
Abstract: The invention comprises perinone dyestuffs, i.e. dyestuffs that contain one of the two groupings:-  <FORM:0868470/IV(c)/1> or <FORM:0868470/IV(c)/2> where R is an aromatic residue fused in orthoor peri-positions and B and C are fused benzene rings, which contain at least one acid group imparting solubility in water and at least one residue of the formula:-  <FORM:0868470/IV(c)/3> or <FORM:0868470/IV(c)/4> in which Z is a chlorine atom or an etherified hydroxyl group or a substituted or unsubstituted amino group.  The dyes are made by reacting a perinone containing at least one acylatable amino group with b -chloro-propionyl chloride, cyanuric chloride or a 2 : 4-dichloro-1 : 3 : 5-triazine bearing in 6-position an etherified hydroxyl group or a substituted or unsubstituted amino group and, if desired, replacing in the dichloro compound obtained by using cyanuric chloride one of the chlorine atoms by an etherified hydroxyl group or by an amino group, the starting materials being chosen so that at least one of them contains an acid, water-solubilizing group and the reaction being carried out so that the product contains at least one mobile chlorine atom.  The dyestuffs dye and print polyhydroxylated materials such as natural or regenerated cellulose or polyvinyl alcohol fibres in conjunction with an alkali and heat treatment in a variety of shades.