baber/WOPTO huggingface dataset:
Patent GB-507456-A (GB)
Title: Improvements in or relating to optical projection apparatus
IPC: G03B21/20
Filed: 1938-08-12
Abstract: 507,456. Optical-projection apparatus. KODAK; Ltd. Aug. 12, 1938, No. 23835. Convention date, Aug. 14. 1937. [Class 97 (i)] In an optical - projection apparatus the support for the lamp is pivotally mounted at one end on a base and is engaged at its other end by cam, mounted on the base, for adjustment of the axis of the projector, and the lamp is enclosed by a housing detachably secured to the support. In the form shown, the base 11 has two spaced arms 16, 17 between which the support 18 for the lamp 29 is pivoted on pins 40. The knurled knob 48 rotates a disc 42 with a cam groove 43 engaging a pin 47 carried by the support. A spring 90, attached to the base, bears on the underside of the support to balance its weight. A framework 32 fixed to the support 18 carries the reflector 31 and condenser lenses 30. The lamp housing 53 has an open-ended rearwardly extending slot 81 engaging a pintle 52 attached to the support. A transversely slidable bar 55 has notches which engage notches on the housing or may be released therefrom for the removal of the housing. The housing carries a heat-insulating shield 72 surrounding the lamp and the lens mount 65, and has slots 76 for a slido carrier and cooling louvres 64. The shield 72 registers with an opening in the top of the housing and has louvres 74 at the top. A metal cap 75 is fitted to the lamp to lessen the passage of light through the louvres.
Patent GB-867209-A (GB)
Title: Improvements in or relating to moulding compositions and moulded articles produced therefrom
IPC: C08K5/17
Filed: 1957-07-19
Abstract: A moulding composition comprises a chlorinated olefine polymer, e.g. chlorinated polyethylene or polypropylene and a minor proportion of an aromatic or straight- or branchedchain aliphatic polyamine containing at least two amino groups in which at least one hydrogen atom is attached to a nitrogen atom, e.g. hexamethylene-diamine, and which is sulphur free.  Fillers and/or modifiers such as lead monoxide and hydrogenated colophony, may be present.
Patent GB-863163-A (GB)
Title: Rotary gas compressor pump
IPC: F04C18/344
Filed: 1957-09-04
Abstract: 863,163. Rotary pumps. SCAIFE CO. Sept. 4, 1957 [Sept. 21, 1956], No. 23940/59. Divided out of 863,162. Drawings to Specification. Class 110 (2). The subject-matter of this Specification is substantially the same as that described in Specification 863,762 but the claims differ.
Patent GB-282880-A (GB)
Title: Improvements relating to dynamo electric machines
IPC: H02K13/00
Filed: 1926-09-28
Abstract: 282,880. Lanchester, F. W., and Lanchester's Laboratories, Ltd. Sept. 28, 1926. Mounting and dismounting rotors; commutators. - To facilitate dismounting armature units from associated internal - combustion engines or other prime movers without disturbing the commutator or armature connections, the commutator is encircled by a rigid band which is supported by the armature core and located between the armature winding commutator leads and the external brushes. The armature core a is clamped between a flange h, which supports the commutator f, and a flange g which is secured on the engine shaft n by a nut r. The internal periphery of the flange h can be contracted to grip the commutator by means of a pair of wedges u, Fig. 1, operated by screws v, or a split annular wedge y, Fig. 2, may be contracted on to the commutator by means of a ring x. Space is provided between the internal surface of the commutator sleeve q and the engine shaft n to enable a tubular spanner to operate the nut r.
Patent GB-1144055-A (GB)
Title: Slide valves
Inventor: HODGES JOHN EDMUND
IPC: F15B13/04
Filed: 1965-06-04
Abstract: 1,144,055. Valves. DOWTY HYDRAULIC UNITS Ltd. 7 July, 1966 [4 June, 1965], No. 23972/65. Heading F2V. [Also in Division G3] A spool valve 15 is biased to the neutral position shown by a spring 27 and in this position connects an inlet (29) to an exhaust port 40 via chamber (30) of a similar parallel spool valve (16), check valve (37) and chamber 41. When spool 15 is moved to the left by lever 17, land 25 stops communication between chamber 41 and port 40 and connects passage 39, which also communicates with the inlet, with chamber 48 leading to one side of a jack 51. Fluid from the other side of the jack is expelled to exhaust port 40 via line 68, check valve 67 (which is opened by cam 65 on the spool), chamber 51 and passage 45. Rightward movement of the spool from the neutral position connects the left-hand side of the jack to passage 39 via chamber 51 and check valve 67 and connects the right-hand side of the jack to exhaust via chamber 48 and passage 46. Each spool 15, 16 has a separate operating lever 17 and grooves 53, 54 which co-operate with a respective spring-pressed detent ball 61 to hold the spool in its work positions. Radial passages 72, 73 in the lands 24, 25 communicate with axial passage 70 in the spool, the end of the latter normally being closed by a relief valve 71. If, when the spool is in one of its work positions, the pressure supplied to the jack exceeds a predetermined value, then the relief valve is unseated and allows fluid pressure to act on one or the other of the seats for spring 27 to cause the spool to be returned to its neutral position. The spool may be replaced by a valve of rectangular cross-section having an elongated slot which at all times is open to a pressure supply port, this slot being capable of connecting the supply to either of the work ports whilst the end edge portions of the valve control exhaust of fluid from the unpressurized work port. The detent means may be withdrawable from the indents automatically under fluid pressure when the pressure in the work ports exceeds a predetermined value.
Patent GB-1381049-A (GB)
Title: Developing process and apparatus
IPC: G03G15/09
Filed: 1972-05-23
Abstract: 1381049 Developing electrostatic images XEROX CORP 23 May 1972 [25 May 1971] 24132/72 Heading G2H Electrostatic latent images on surface 25 are developed by a carrier/toner powder developer supplied by a moving conductive donor member 21, on which it forms a magnetic brush which collapses before the developer is brought into contact with the image-bearing surface. Preferably the donor member is an endless belt running over rollers 20, 29, one of which houses fixed magnets 23, or is a rotating sleeve surrounding fixed magnets. The donor member may release developer on to a developing electrode, from which unused developer is discharged to be scavenged by a second magnetic brush. Multiple donor members may be used in conjunction, and the or each donor member may be fed with developer by magnetic brush rollers.
Patent GB-783474-A (GB)
Title: Improvements in or relating to apparatus for use in the determination of the position of a point on a plane surface, given the differences between the distances between t he point and three fixed points on the same surface
IPC: G01S1/02
Filed: 1955-08-22
Abstract: 783,474. Photo-electric control arrangements. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Aug. 22, 1955 [Aug. 23, 1954], No. 24182/55. Class 40 (3). [Also in Groups XIX and XXXVIII] Apparatus for determining the position of a point on a plane given the differences between the distances of that point from three fixed points on the surface (see Group XIX) comprises three rods, such as 3, having a common pivot 2 and each rotatable about, and longitudinal movable relative to, a respective pivot 11 representing a corresponding one of the three fixed points. In use, two of the rods are driven by means of respective motors 17 so as to move the pivot 2 which in turn varies the effective length of the third rod 3. For this purpose, the rod 3 is followed by its supporting frame 14, on which it is relatively movable, under the control of a photo-electric follow-up system. The latter comprises a pair of photo-cells 20, 20<SP>1</SP> carried on the frame 14 together with a light source and two fixed prisms or mirrors 19, 19<SP>1</SP> between which a light beam is normally directed by a prism or mirror 21, rotatable by movement of a holder 12 secured to the rod 3 relative to the frame 14. Thus, on movement of the rod 3, one or other of the cells is activated and a corresponding one of a pair of reversely operating motors, Fig. 7 (not shown), is energized. These motors control a synchro-motor associated with the motor 17. The motor 17 drives a shaft 16 on which is threaded a nut 15 carried by the frame 14, and is operated in the appropriate direction to cause the frame 14 to follow the holder 12. The driving synchromotor also adjusts a variable resistance so that the value of the resistance varies in accordance with the effective length of the rod 3. The resistance is connected in a bridge circuit in which the known difference values are set and balance of which indicates that the position of the pivot 2 corresponds to that of the point to be determined.
Patent GB-500102-A (GB)
Title: Improvements in motor vehicle bodies
IPC: B62D25/12
Filed: 1938-08-17
Abstract: 500,102. Vehicle bodies ; luggageholders. ZAVODY RINGHOFFER-TATRA AKCIOVA SPOLECNOST. Aug. 17, 1938. No. 24210. Convention date, Aug. 25, 1937. [Classes 103 (ii) and 108 (i)] The front part of a streamlined body for a motor vehicle having a rear engine is constructed in the form of a box 5, for accommodating, for example, a spare wheel or wheels 6 and is connected by hinges 7 to the main part 4 of the body in such a manner that it may be raised and secured in the raised position, e.g. by a rod 8, in order to facilitate access to the front axle. The box 5 is closed by a streamlined cover 9 connected by the hinges 7 or by other hinges to the body part 4. Preferably the wings 10 or the major portions thereof are fixed to the box 5. The main body part 4 is supported by a frame member 1 which carries a front, axle constituted by transverse leaf-springs 2, 3.
Patent GB-518492-A (GB)
Title: Improvements relating to rollers for endless band conveyors
IPC: B65G39/09
Filed: 1938-08-18
Abstract: 518,492. Rollers for endless - belt conveyers. CROFTON & CO. (ENGINEERS), Ltd., C., and MANN, R. W. Aug. 18, 1938, No. 24371. [Class 78 (i)] [Also in Group XIII] Ball bearing rollers for endlessbelt conveyers in which the bearings are carried by sheetmetal end plates pressed or spun into a sinuous crosssection comprising a flat portion and two cylindrical portions, the smaller of which houses the outer race of the ball bearing while the larger fits inside the tubular roller body, are constructed with the three portions merged into one another by curves of substantial radius to give a resilient construction. Fig. 2 shows a sheet metal plate 10 provided with one circular flange 12 turned over at 16 to prevent inward movement of the ball-race 18 and with a second flange 14 spotwelded to the roller body 20. A dirt-excluding and grease - retaining washer 32 is mounted between the grease-confining plate 34 and the outer plate 30 which is flanged at 28 to restrain the bearing 18 against outward movement and is held in place by a spring ring 24. The two flanges 12 at opposite ends of the roller may be extended to meet one another and form an oilfilled casing. Instead of welding the flange 14 to the roller body, the end may be turned over as at 38 to abut the end of the body. The spring ring 24 in this case holds all the parts in position. In a further modification the flange 12 is continued outwards to the line of the plate 30, the part 10 is in the position occupied by the plate 30 and the flange 14 is turned inwards instead of outwards. The members 30, 32 and 34 are arranged between the spindle and the flange 12.
Patent GB-360969-A (GB)
Title: Process of treating vulcanised fibre
IPC: B44C5/04
Filed: 1930-08-14
Abstract: 360,969. Treating vulcanized fibre. KNIGHT, W. E., 2, Norfolk Street, Strand, London. Aug. 14, 1930, No. 24401. [Class 140.] Vulcanized fibre which is to be attached to wood by glueing and then polished is first moistened, and then scraped, roughened or ground upon both the surface to be attached to the wood and upon the surface to be polished. The vulcanized fibre is first freed from dirt and grease and then immersed in hot water. The surface of the fibre is then scraped or roughened, glue or other adhesive is applied, and the fibre united to the wood under pressure. Before the fibre is dry, the exposed face may be scraped or roughened and ground and then polished. Any stains or polishes used for polishing wood may be used.
Patent GB-261689-A (GB)
Title: Improvements in or relating to revolving seats or chairs for theatres and other places
IPC: A47C7/60
Filed: 1926-10-04
Abstract: 261,689. Birdsall, J. M. Oct. 4, 1926. Revolving-seats; folding-seats.-A chair for use in 'theatres &c., and of the kind comprising a tip-up seat rest 5, to which is pivoted at 6 a rotatable seat member 4, is prrovided with means, such as the spring-pressed latch 9, for holding the seat member in its normal predetermined position. When it is desired to allow a person to pass, the latch is withdrawn by means of the knob 13, and the seat can then be rotated.
Patent GB-259570-A (GB)
Title: Improvements in or relating to rotary hearth furnaces
IPC: H05B3/02
Filed: 1926-10-05
Abstract: 259,570. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Oct. 6, 1925, [Convention date]. Resistance furnaces.- In a furnace having an annular rotary sole, or two concentric soles, which are rotated in opposite directions, resistances g, hare arranged at both the inner and outer peripheries of the sole. In the concentric sole construction shown, the resistances are unsymmetrically arranged in relation to the charging opening, so that for each sole the preheating section is shorter than the cooling section.
Patent GB-715934-A (GB)
Title: Improvements in and relating to balance mechanism for vertically sliding windows
IPC: E05D13/00
Filed: 1952-10-02
Abstract: 715,934. Window regulators. YOUNG. W. Sept. 22, 1953 [Oct. 2, 1952], No. 24733/52. Class 20 (3) In a window balancing mechanism for vertically sliding windows comprising a 'sash supporting-arm 19 engaged for rotation with a spring loaded cam 18, the profile of which tis such 'that the window is substantially balanced in all positions, a slipper 24 bears substantially centratty on a rocking member 25 pivoted at 26, and provided with a roller 27 through which the spring-loading, due to one or more springs 15, is transmitted to the cam 18. Casing 12 is formed from two pressings, sufficiently shallow for the space available in a vehicle, door or body-work, in which channels 14 provide housings for springs 15 and which form a bearing 16 for a spindle 17. The window may be raised or lowered by direct manual pressure or, alternatively, by an operating handle 31 which may be secured to the spindle 17. The cam 18 may be provided with a toothed quadrant which meshes with a handle-operated spur wheel. A locking device 32 may be provided to prevent the opening of the window otherwise than by the operation of the handle. The mechanism may be duplicated for large windows and interconnected by linkwork.
Patent GB-705262-A (GB)
Title: Improvements in the manufacture of fertilizer of low hygroscopicity notably for use in tropical soils and climates
Inventor: GUILLET ROBERT
IPC: C05B11/06
Filed: 1950-10-10
Abstract: A diralium phosphate-containing fertiliser is prepared by decomposing phosphates at temperatures not exceeding 35 DEG C. with nitric acid together with ammonium sulphate or ammonia and sulphuric acid, neutralizing the paste obtained at below 40 DEG C. with ammonia and passing the product to a granulator together with dried recycled powdered product, to produce spherical granules with a diameter above 1/8 inch.  Potassium salts may be added and the ammonification may occur in stages, for example first with gaseous, then with 25 per cent. aqueous ammonia. Specifications 440,214 and 615,476 are referred to.ALSO:A dicalcium phosphate-containing fertilizer is prepared by decomposing phosphates at temperatures not exceeding 35 DEG  C. with nitric acid together with ammonium sulphate or ammonia and sulphuric acid, neutralizing the paste obtained at below 40 DEG C. with ammonia and passing the product to a granulator together with dried recycled powdered product, to produce spherical granules with a diameter above 1/8 inch.  Potassium salts may be added and the ammonification may occur in stages, for example, first with gaseous, then with 25 per cent aqueous ammonia.  Specifications 440,214 and 615,476, [both in Group III], are referred to.
Patent GB-735580-A (GB)
Title: Improvements relating to filters or strainers
IPC: A47G27/04
Filed: 1952-10-03
Abstract: 735,580. Filters. HOARE, A. Oct. 5, 1953, No. 24833/52. Class 46. In filters of the kind comprising a substantially cylindrical straining wall having circumferential slots for radial flow, each slot having. an open end at a cut-away part of the wall where radial flow is prevented, and means for producing relative oscillating movement between the straining wall and cleaning knives (one in continuous engagement with each slot), about the axial region of the straining wall, so that the leading edge of each knife ejects foreign matter through the open end of the slot, the relative movement referred to is eccentric with respect to the straining wall, so that the knives are caused to emerge radially from the circumferential slots in the straining wall. Annular blades 10, each in two portions 12, are mounted on a central shaft 11 and spaced from one another by washers 14 on spindles 15 passing through lugs 16 on the blades. The circumferences of the portions 12 are struck about centres located on opposite sides of the axis of rotation of the shaft 11 so that on rotation of the latter half a revolution in a counterclockwise direction the slots between the blades, besides rotating relative to fixed sets of cleaning knives 19, 19a, move radially inwards relative to them also. The cleaning action of the knives particularly with respect to foreign matter adhering to the outer surface of the straining wall is thus improved. (For convenience of illustration the blades 10 are shown fixed and the knives as having been rotated almost half a revolution in a clockwise direction.) Radial flow through the cut-away parts 13 is prevented by washers 17 located in them and mounted on spindles 18 passing through the assembly. In a modification only a single cut-away part 13 in each blade, and a single set of cleaning knives, are provided, the periphery of each blade being drawn from a centre with a uniformly-increasing radius. The straining wall may be incorporated with the filter of Specification 361,681.
Patent GB-604589-A (GB)
Title: Improvements in the treatment of cellulosic materials dyed or pigmented with iron, chromium, or aluminium oxides
IPC: D06M11/45
Filed: 1944-12-12
Abstract: 604,589. Proofing permeable materials. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION, DERRY, R. L. FARGHER, R. G., and THOMAS. F. W. Dec. 12, 1944, No. 24868. [Class 140] Cotton or other natural cellulosic material in the form of fabric, yarn or unspun fibres which has been pretreated with iron, chromium or aluminium oxides as by the mineral khaki process, is further treated with an aqueous solution of a salt of copper, mercury or aluminium, or with a complex of copper such as a cuprammonium derivative to provide resistance against micro-organisms. The pre-treated material may be washed in water or in formic or acetic acid solution before the further treatment, and for the latter copper sulphate, mercuric acetate and aluminium acetate, if desired in acetic acid solution; and also cuprammonium derivatives, are specified.
Patent GB-788471-A (GB)
Title: Machines for bevelling the edges of lenses
IPC: B24B9/14
Filed: 1955-08-30
Abstract: 788,471. Grinding lenses. RAPHAELS', Ltd., and RAPHAEL, O. P. Aug. 14, 1956 [Aug. 30, 1955], No. 24911/55. Class 60. A machine for grinding the bevel around the edge of a lens 30 by means of a rotating grinding wheel 11 having a groove in its grinding surface comprises a lens-carrier assembly 18 which is mounted on an axis about which it can pivot to permit free lateral float of the lens in relation to the grinding wheel and incorporates a motor 21 for rotating the lens about its own axis. The assembly 18, which is in two sections 19, 20, is mounted on a vertical shaft 15 pivoted in bearings 14, 16 so as to permit the assembly horizontal swinging movement whereby it has freedom for the lateral float. The rear section 19 includes the motor 21 which is attached to the shaft 15 and drives through gearing 24 a horizontal shaft 25 forming a pivot for the front section 20 of the carrier ; the shaft 25 rotates through chain or belt drives the shafts 28, 29 which are mounted in the section 20 and carry pads between which the lens is gripped. For copy-grinding, the shaft 28 carries a detachable pattern plate 33 co-operating with an anvil 34 so as to lift the section 20 as the lens and cam. rotate. A catch 39 retains the carrier 20 in its upper inoperative position. A light 37 indicating that the machine is switched on and a dial gauge 36 for setting up the machine are also provided.
Patent GB-403772-A (GB)
Title: Improvements in and relating to the conveyance of nonhomogeneous mixtures
Filed: 1932-09-07
Abstract: <PICT:0403772/III/1> Liquids containing solids in suspension, e.g. carbonaceous materials for destructive hydrogenation are fed to high pressure autoclaves &c., through a plurality of parallel tubes of such dimensions that the proportion of the tubular cross section (in sq. cms.) to the inner periphery (in cms.) of each tube does not exceed .25.  A mixture of coal, water and iron is fed from a header 3 to four tubes 4 of the specified dimensions and thence through extensions 10, 12, into a high pressure autoclave 1.  The residual materials are removed through similar tubes and heat exchange therewith is obtained by passing the tubes through a heat exchanger 7.
Patent GB-1317912-A (GB)
Title: Method and apparatus for detecting materials in a liquid
IPC: G01N33/18
Filed: 1970-05-22
Abstract: 1317912 Detection of traced quantities of material in a liquid carrier VARIAN ASSOCIATES 22 May 1970 [16 June 1969] 25005/70 Heading B1X [Also in Division E1] Trace quantities of material in a liquid carrier are detected by a method comprising separating the material from the carrier, by bringing the liquid carrier containing the material into contact with a first membrane separator, passing the material which diffuses through the first separator as a vapour into a carrier gaseous atmosphere, concentrating the vapourised material with respect to the carrier gas atmosphere by bringing the carrier gas containing the diffused material into contact with a second membrane separator and detecting the concentrated vapourised material which diffuses through the second separator. The apparatus shown comprise a first membrane separator 2 having membrane 3 for separating the material to be detected from its liquid carrier stream for entrainment in the carrier gas stream from 6 or in permanent gas also separated from the liquid, a second membrane separator 9 having membranes 7, 13 for concentrating the material to be detected in the gas stream and means 16 for analysing the gas stream. The liquid carrier may be water and the material to be detected may be an organic hydrocarbon of the general type characteristic of flavours and fragrances or of mineral oils, or organic contaminants resulting from movement of a vessel or fish or mammal through water. The membrane 3 may be 1 mil thick silicone rubber and may be coated with frease or wax. The analysing means may be a mass spectrometer.
Patent GB-346250-A (GB)
Title: Improvements in belt gearing
IPC: F16H7/02
Filed: 1930-08-22
Abstract: 346,250. Rope gearing. SMITH, W. S., 107, Bromham Road, Bedford. Aug. 22, 1930, No. 25123. [Class 80 (i).] A V-rope or a number of V-ropes c in parallel engages with a grooved pulley d and with a smooth pulley d<1>.