EP0314609A2 - Pressure container for gases of high purity - Google Patents
Pressure container for gases of high purity Download PDFInfo
- Publication number
- EP0314609A2 EP0314609A2 EP88730233A EP88730233A EP0314609A2 EP 0314609 A2 EP0314609 A2 EP 0314609A2 EP 88730233 A EP88730233 A EP 88730233A EP 88730233 A EP88730233 A EP 88730233A EP 0314609 A2 EP0314609 A2 EP 0314609A2
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- European Patent Office
- Prior art keywords
- projectors
- sculpture
- cameras
- picture
- mass
- Prior art date
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/10—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for protection against corrosion, e.g. due to gaseous acid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0119—Shape cylindrical with flat end-piece
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- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/032—Orientation with substantially vertical main axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/056—Small (<1 m3)
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- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0614—Single wall
- F17C2203/0617—Single wall with one layer
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- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
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- F17C2203/0636—Metals
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- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
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- F17C2203/0643—Stainless steels
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- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
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- F17C2203/0658—Synthetics
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- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
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- F17C2203/0663—Synthetics in form of fibers or filaments
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- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0153—Details of mounting arrangements
- F17C2205/018—Supporting feet
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- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0305—Bosses, e.g. boss collars
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- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0308—Protective caps
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- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
- F17C2205/0329—Valves manually actuated
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- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0382—Constructional details of valves, regulators
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- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0388—Arrangement of valves, regulators, filters
- F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
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- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/21—Shaping processes
- F17C2209/2172—Polishing
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- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/22—Assembling processes
- F17C2209/221—Welding
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- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/016—Noble gases (Ar, Kr, Xe)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
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- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/05—Ultrapure fluid
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- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
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- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/036—Very high pressure (>80 bar)
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- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/012—Reducing weight
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- F17C2260/05—Improving chemical properties
- F17C2260/053—Reducing corrosion
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- F17C2270/00—Applications
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- F17C2270/0518—Semiconductors
Definitions
- a common method of producing stereoscopic or three-dimensional sculptures is comprised of a stereophotographic process and a sculpture manufacturing process.
- stereophotographic processing apparatus 1 In the stereophotographic process, there is employed, for instance, such an arrangement of stereophotographic processing apparatus as designated generally at a reference numeral 1 in FIG. 5(I).
- This stereophotographic processing apparatus 1 is seen comprising in construction a nearly letter C-shaped frame in symmetrical shape designated at 2, seven photographic cameras at Ci, C 2 , C 3 , C 4 , Cs, C 6 , C 7 , and three units of projectors at P 1 , P 2 P 3 , which are all arranged as shown.
- the reference characters Ci through C 7 and Pi through P 3 not only represent a group of photographic cameras and a group of projectors, respectively, but also represent typically the optical lenses per se belonging to these components for convenience in the description to follow.
- the camera C 4 is disposed in the center position of the frame 2, and also that the other cameras C 3 , C 2 , C 1 and Cs, C 6 , C 7 are disposed discretely along the frame 2 in a symmetrical relationship with respect to the central camera C 4 .
- the projectors Pi and P 3 are seen disposed in the neighborhood of the cameras Ci and C 7 in a symmetrical relationship with respect to the projector P 2 which is disposed in the neighborhood of the central camera C 4 , respectively.
- the cameras C 1 through C 7 and the projectors P i through P 3 are disposed concentering at a specific point 0 1 which is slightly before the person to be photographed, as seen schematically in the figure.
- Each of the projectors P 1 through P 3 is fitted with a screen 4a with a number of lines running vertically in parallel or stripes S 1 , S 2 ", S n as shown in FIG. 6 (II), and the projectors are operated to throw striped patterns from the screens 4a onto the object to be photographed 3.
- an apparatus 6 for producing solid sculptures which comprises a plurality of projectors P 11 through P 17 corresponding in quantity to the photographic cameras Ci through C 7 to replace them and disposed in the corresponding locations for cameras existing along the extension of the frame 5.
- the photographed object 3 is replaced on the same location with a mass of material 7, for example, a lump of clay for the preparation of an original form for a stereoscopic sculpture on the same location.
- the reference characters P 11 through P 17 not only represent a group of projectors, respectively, but also represent typically the optical lenses per se belonging to these projectors for convenience in the description to follow.
- These projectors P 11 through P 17 are loaded with the photographic pictures taken by the group of cameras C 1 through C 7 disposed in the same positions, respectively. These pictures contain the scenes of projection on and around the outer shape in the surface of the object 3 such that the patterns 4b having the plurality of parallel lines S n of the screens 4a projected from the projectors P 1 through P 3 are deformed accordingly to its outer surface configuration, when projected thereupon in the previous photographing process (see FIG. 6(II)).
- the focal length of the lens used in each of the projectors P 11 , P 12 , P 16 , P 17 is 50mm, and that of the lens employed in each of the projectors P 13 , P 14 , P 15 is 75mm, respectively. More specifically, it is notable that the lens with the same focal length is used for the compnents such as those cameras C 1 through C 7 and the projectors as those projectors Pi through P 3 and through P 17 disposed in the corresponding positions for the stereophotographic process and the sculpture processing process.
- a 50% down-scaled positive is produced from the original pictures taken by the group of cameras C 1 through C 7 , and that thus-obtained reduced scale positive, the frame 5 for producing the conventional life-size stereoscopic sculpture and the group of projectors P 11 through P 17 disposed on this frame are used to obtain a 50% down-scaled sculpture.
- this method wherein there is a long distance between the group of projectors P 11 through P 17 and the mass of material 7, it was so difficult in practice to make an adjustment to have the striped patterns 4b meet and coincide with each other as appearing when projected upon the material from each of the projectors P 11 through P 17 , and consequently, this method has not been employed in practice.
- the distances a and b in each of the projectors P 11 through P 17 may be obtained, as follows.
- the dimensions of the frame 5 for mounting the projectors P 11 through P 17 is as large as the one used in the stereophotographic processnoted hereinbefore.
- the distance b may be obtained as follows.
- the dimensions of the frame 10 for mounting the projectors P 1 through P 17 is half as large as the one used in the stereophotographic process taken previously.
- the distance "b” is obtained as follows. Taking a ratio of "c" with respect to the distance "b" for the life-size sculpture, c may be obtained as follow.
- the present invention is essentially directed to the provision of a useful solution to such a difficulty in practice as referred to above and experienced in the conventional stereophotographic process for producing a works of sculpture.
- the present invention is directed to the provision of the improvement to attain the object stated above in, as summarized in brief, a process of producing a stereoscopic sculptural work on the basis of a stereophotographic process by arranging a plurality of photographic cameras and a plurality of optical projectors, each being loaded with a transparent screen having a plurality of parallel lines therein, around an object to be photographed at a predetermined object distance, arranging another plurality of projectors operatively around a mass of material to be modeled at such an operative distance of projection that they may be located in a similar position to that of each of the cameras to project the screen therefrom onto the object to take a photographic picture of a striped pattern in the screen projected onto the object, loading the projector with thus-taken picture to be projected onto the mass of material to be modeled, and modeling manually the mass of material to make the projected lines meet and coincide with each other as appeared thereon and to obtain a similar sized sculptural work to the object; a process of producing a stereoscopic sculpt
- the present method of producing works of sculpture by way of a preferred embodiment of the present invention is comprised of a stereophotographic process and a sculpture producing process as in the conventional process.
- a frame 11 is prepared proportionally to the shape of and accordingly to the scale of reduction to 50% on the part of the frame 2, and then there are disposed a group of projectors P 21 through P 27 , in the corresponding locations for the group of cameras C 1 through C 7 so as to form a stereoscopic sculpture producing apparatus 12 (see FIG. 1).
- the lenses of these projectors P 21 through P 27 have a focal length half as long as that of the lenses of the cameras Ci through C 7 , respectively.
- a frame 13 is prepared proportionally in shape of and accordingly to a scale of reduction of 60% with respect to the frame 2 for the stereophotographic process, and then, a group of projectors P 31 through P 37 is located operatively along the extension of the frame 13 in position corresponding to those for the group of cameras Ci through C 7 of the stereophotographic apparatus 1, thus providing the stereoscopic sculpture producing apparatus 14 (see FIG. 2),
- Each of the lenses of these projectors P 31 through P 37 have a forcal length reduced to 60% of that of the lens of the corresponding one of the cameras C 1 through C 7 , respectively.
- the both end points of the frame 11 are designated “E” and "F”, and the lower corners thereof are designated “G” and “H”, and next to FIG. 2, the both end points of the frame 13 are designated “I” and "J”, and the lower corners thereof are designated “K” and "L”, respectively.
- reference characters P 21 through P 27 , and P 31 through P 37 are adapted to designate the projectors, as well as the lenses per se thereof, conceptually.
- the ratios as obtained for each of the group of projectors P 21 through P 27 and P 31 through P 37 are constant for each of the scales of reduction so specified, and moreover, the value b for each of the projectors decreases as the scale of reduction becomes smaller.
- each value b for producing 50% sculpture will be reduced to be 50% of or half as large as the value b for the production of a life-size sculpture
- each value b for producing 40% sculpture will be reduced to be 60% less than or 40% of the value b for the production of a full-size sculpture, respectively.
- the general arrangement of stereoscopic sculpture production apparatus 12 and 14 according to this invention will be made available with a substantially reduced size in the arrangement of projectors P 21 through P 27 and P 31 through P 37 accordingly to a specified scale of reduction, respectively.
- the arrangement of stereoscopic sculpture production apparatus 12 and 14 may turn to be a small and light arrangement such that it is readily portable to any desired location for use, and such that the arrangement of projectors may not obstruct any performances of operation in a stereoscopic sculptural work, and this advantage may stand out particularly when a scale of reduction of 50% or more is taken in the sculpture production, which may eventually contribute to a substantial improvement in the efficiency of sculptural work, accordingly.
- a single set of positives may serve for the production of sculpture to a desired scale of reduction, which may then be used in a given group of projectors set on the frame for a desired scale.
- this arrangement can equally be adapted to the production of relief works, either.
- a third positive is prepared in the manner disclosed in Japanese Patent Publication No. 7,494/1974 prior to the loading of the pictures as taken by the arrangement of cameras 1 into the arrangement of stereoscopic sculpture production apparatus 12, 14, and then this third positive is projected in the manner as disclosed in this Japanese Patent Publication specification to obtain a relief work.
- the present invention may be adapted while projecting the third positive for the production of a relief work.
- a frame structure it may not necessary to make the frame for use with a stereophotographic arrangement similar in shape with the one for a stereoscopic sculpture production arrangement, and so, what is required essentially is that the group of projectors of the sculpture production arrangement may be located in position corresponding in similarity to that for the group of cameras and projectors of the stereophotographic arrangement, and so, a frame structure may be prepared with any desired shape if it may satisfy this requirement, accordingly.
- a relief work as used herein is directed to generally mean a carving or raised work embossed in a plane with a partial solid or three-dimensional appearance.
- a third positive transparency is required to be prepared.
- the preparation of this third positive transparency is made in the following manner.
- an object 3 to be pictured is projected preliminarily with a screen 4a (see FIGS. 6(I) and (II)).
- the object 3 is photographed by using the group of cameras C 3 , C 4 and Cs belonging to the stereophotographic apparatus 1.
- the picture taken by the came C 4 is defined a first positive picture
- the pictures taken by the cameras C 3 and Cs are defined a second positive picture, respectively.
- FIG. 3 shows the state that the second positive picture of the camera C 5 is projected by using the projector P 15 .
- the first positive picture as taken by the camera C 4 is reduced to be a half scale or 50% smaller in accordance with the required scale of reduction (hereinafter, this is referred to as "reduced first positive").
- a projector P 26 loaded with the third positive is operated to throw overlapping patterns of parallel lines or stripes onto the reference plane in such a manner that there are seen a plurality of crossings M 1 , M 2 , M 3 ,,,,, defined with the parallel lines projected from the projector C 26 on the surface of the mass of clay, and the operator or sculptor may shape or model the mass by adding or removing clay to make proper striped patterns so as to obtain a 50% down-scaled relief work 17 on the reference plane GP, accordingly.
- the dimensions of such projectors may be made smaller in size, thus making smaller the entire arrangement for producing a sculptural work, accordingly, and thus making the transportation of the entire arrangement so easier than the conventional arrangement.
- each of the projectors may be made smaller in size, they may not project outwardly from the extension of the frame structure, and there is no obstruction to the operator's manual operations by reaching from the outside of the frame structure in the production of a sculpture work on a reduced scale, thus effecting a substantial efficiency in the production work of such a down-scaled sculpture, accordingly.
- the scale of reduction of a positive transparency to be loaded into such projectors may turn to be constant, thus making it possible to commonly use positives of the same scale of recution, and thus making easier the preparation of such positives in the sculptural work. From such standpoint, it is feasible in practice to improve the efficiency of sculptural work, accordingly.
- the process of this invention may equally be adapted to the production of a relief work, in which there may also be attained a similar advantageous effect to the case of stereoscopic sculptural work.
Abstract
Description
- Field of the Invention and Related Art Statement:
- The present invention relates to a stereophotographic process of and processing apparatus for producing works of sculpture.
- One of the typical stereophotographic processes known in the art for this purpose of producing a stereoscopic sculpture is now shown by way of example with reference to the accompanying drawings, FIGS. 5 through 7.
- In general, a common method of producing stereoscopic or three-dimensional sculptures is comprised of a stereophotographic process and a sculpture manufacturing process.
- In the stereophotographic process, there is employed, for instance, such an arrangement of stereophotographic processing apparatus as designated generally at a reference numeral 1 in FIG. 5(I). This stereophotographic processing apparatus 1 is seen comprising in construction a nearly letter C-shaped frame in symmetrical shape designated at 2, seven photographic cameras at Ci, C2, C3, C4, Cs, C6, C7, and three units of projectors at P1, P2 P3, which are all arranged as shown. In this specific arrangement, the reference characters Ci through C7 and Pi through P3 not only represent a group of photographic cameras and a group of projectors, respectively, but also represent typically the optical lenses per se belonging to these components for convenience in the description to follow.
- Referring more specifically to this arrangement, it is seen that the camera C4 is disposed in the center position of the
frame 2, and also that the other cameras C3, C2, C1 and Cs, C6, C7 are disposed discretely along theframe 2 in a symmetrical relationship with respect to the central camera C4. Also, the projectors Pi and P3 are seen disposed in the neighborhood of the cameras Ci and C7 in a symmetrical relationship with respect to the projector P2 which is disposed in the neighborhood of the central camera C4, respectively. In addition, there is disposed, for example, a person to be photographed as anobject 3 in the open mouth area of theframe 2, facing towards the central camera C4, which person is shown to be a sphere for clarity in representation. Further to the location of this object orperson 3, it is to be noted that the cameras C1 through C7 and the projectors Pi through P3 are disposed concentering at a specific point 01 which is slightly before the person to be photographed, as seen schematically in the figure. - Each of the projectors P1 through P3 is fitted with a screen 4a with a number of lines running vertically in parallel or stripes S1, S2 ", Sn as shown in FIG. 6 (II), and the projectors are operated to throw striped patterns from the screens 4a onto the object to be photographed 3. On and around the surface of the
object 3, there are projected the striped patterns 4b as shown in FIG. 6 (11), and theobject 3 projected with such striped patterns thereon is then photographed all at once by the group of cameras C1 through C7 arranged around the object to obtain photographic pictures in negative and/or positive (hereinafter, referred to as "pictures" for convenience in the description). - Now, referring to the sculpture manufacturing process which is another part comprising the method of producing stereoscopic or three-dimensional sculptures, as typically shown in FIG. 5(11), there is employed an
apparatus 6 for producing solid sculptures which comprises a plurality of projectors P11 through P17 corresponding in quantity to the photographic cameras Ci through C7 to replace them and disposed in the corresponding locations for cameras existing along the extension of theframe 5. Next, the photographedobject 3 is replaced on the same location with a mass ofmaterial 7, for example, a lump of clay for the preparation of an original form for a stereoscopic sculpture on the same location. - In this specific arrangement, the reference characters P11 through P17 not only represent a group of projectors, respectively, but also represent typically the optical lenses per se belonging to these projectors for convenience in the description to follow.
- These projectors P11 through P17 are loaded with the photographic pictures taken by the group of cameras C1 through C7 disposed in the same positions, respectively. These pictures contain the scenes of projection on and around the outer shape in the surface of the
object 3 such that the patterns 4b having the plurality of parallel lines Sn of the screens 4a projected from the projectors P1 through P3 are deformed accordingly to its outer surface configuration, when projected thereupon in the previous photographing process (see FIG. 6(II)). - When these pictures are projected onto the outer surface of the mass of
material 7 from the projectors Pii through P17 noted above, there are seen a plurality of shadow lines or stripes which correspond accordingly to the parallel lines Sn of the screen 4a. Then, a next step is to adjust the surface configuration of the mass ofmaterial 7 by removing or adding an appropriate amount of material from the surface thereof in such a manner that each of such shadow lines or stripes projected separately from each of the projectors may coincide with each other on the outer surface thereof. When each of the shadow lines or stripes may exactly meet with each other on the surface of the mass of modelingmaterial 7, there is now attained a finish in the modeling of thematerial 7 with a satisfactory expression in similarity or resemblance with theobject 3 to follow. This is a typical example known in the art to produce a stereoscopic sculpture of an object by way of the stereophotographic process. - Now, in the above description, while
different frames frame 5 to an equal effect. Incidentally, giving an idea of dimensions of theframe 2 with the stereophotographic processing apparatus 1, the following is an example. - If the both ends of the
frame 2 are designated at A and B, with the corners C and D in the curved extension, AC = BD = 1036mm; DC = 496mm; -
C 1 O 1 =C 7 O 1 = 650mm; -
C 2 O 1 C 6 O 1 -
C 3 O 1 C 5 O 1 = 670mm; andC 4 O 1 - In this apparatus, it is assumed that the focal length of the lens of each of the cameras C1, C2, C6, C7, and of the projectors P1, P3 is 50mm, and that the focal length of the lens of each of the cameras C3, C4, C5, and the projectors P2 is 75mm, respectively.
- Also, it is assumed that the focal length of the lens used in each of the projectors P11, P12, P16, P17 is 50mm, and that of the lens employed in each of the projectors P13, P14, P15 is 75mm, respectively. More specifically, it is notable that the lens with the same focal length is used for the compnents such as those cameras C1 through C7 and the projectors as those projectors Pi through P3 and through P17 disposed in the corresponding positions for the stereophotographic process and the sculpture processing process.
- This is the case for producing a stereoscopic sculpture with the life size from the
object 3 by way of the stereophotographic process. Besides, it is required sometimes to make a sculpture with a reduced scale of, for instance, 80%, 50% or 40% of theobject 3. - For this purpose, it is contemplated that a 50% down-scaled positive is produced from the original pictures taken by the group of cameras C1 through C7, and that thus-obtained reduced scale positive, the
frame 5 for producing the conventional life-size stereoscopic sculpture and the group of projectors P11 through P17 disposed on this frame are used to obtain a 50% down-scaled sculpture. However, with this method wherein there is a long distance between the group of projectors P11 through P17 and the mass ofmaterial 7, it was so difficult in practice to make an adjustment to have the striped patterns 4b meet and coincide with each other as appearing when projected upon the material from each of the projectors P11 through P17, and consequently, this method has not been employed in practice. - In this respect, therefore, it is the common practice in the conventional process to reduce the distance from each of the projectors P11 through P17 to the point 01 in the stereoscopic sculpture producing process, if necessary. In this manner, when it is required to have a sculpture reduced to a 50% or more down-scale, as it is difficult to obtain a
sufficient working space 8 between theframe 5 and the mass ofmaterial 7 large enough for the operator to stand in, the operator would then have to once step out of theworking space 8 and make an adjustment work from the outside of theframe 5. - With this arrangement, while it is advantageously feasible in practice to make the size of the
frame 5 smaller accordingly to a required scale of reduction on the part of a sculpture, it would inevitably make the projectors P11 through P17 greater in relative dimensions to the frame, which may possibly obstruct a sculpture work, and which would bring a difficulty for the operator while performing his job for adjustment from the outside of theframe 5. - Here now is a definite description on the practice of a sculpture producing work reduced in scale down to 50% with reference to FIG. 7, in comparison with the production of a life-size sculpture.
- Now, assuming that the focal length of the lens employed in the projectors P11 through P17 is designated "f" and that the distance from the lens to the point O1 is defined "a" and the distance from the lens to the
picture 9 of theobject 3 shown in FIG. 6(il) is defined "b", respectively, there is obtained the following relationship in terms of equation; - With this equation, the distances a and b in each of the projectors P11 through P17 may be obtained, as follows.
- The dimensions of the
frame 5 for mounting the projectors P11 through P17 is as large as the one used in the stereophotographic processnoted hereinbefore. - The distance b may be obtained as follows.
- (i) For the projector P14
With a = 800mm and f = 75mm; - (ii) For the projectors P13 and P15 With a = 670mm and f = 75mm;
- (iii) For the projectors P12 and P16 With a = 530mm and f = 50mm;
- (iv) For the projectors P1 and P17 With a = 650mm and f = 50mm;
- The dimensions of the
frame 10 for mounting the projectors P1 through P17 is half as large as the one used in the stereophotographic process taken previously. In this case, the distance "b" is obtained as follows. Taking a ratio of "c" with respect to the distance "b" for the life-size sculpture, c may be obtained as follow. - (i) For the projector P14
With a = 400mm and f = 75mm;- c = 92.31 / 82.76 = 1.115
- (ii) For the projectors P13 and P15 With a = 335mm and f = 75mm;
- c = 96.63 / 82.76 = 1.114
- (iii) For the projectors P12 and P16 With a = 265mm and f = 50mm;
- c = 61.34 / 55.21 = 1.111
- (iv) For the projectors P11 and P17 With a = 325mm and f = 50mm;
- c = 59.09 / 54.17 = 1.091
- As is apparent from the example above, in the case with the reduction scale of 50%, though the overall size of the
frame 10 is half as large as theframe 5, the distance b in connection with the projectors P11 through P17 has no substantial difference in comparison with the case for the life-size sculptural work. - This means that the relative size of the projectors P11 through P17 is substantial with respect to the frame extension which are disposed extending to a substantial extent out of the area defined by the
frame 10. This was one of the disadvantageous factors in the manual operation taken by the operator to reach the mass ofmaterial 7 placed in the center of the working area from the outside thereof. - Also, for the case of 50% down-scale sculpture, there may exist a substantial variation in the ratio "c", it was required in practice to prepare positives taken by the cameras C1 through C7 for a reduced sculpture by modifying them so that they may well fit each of the projectors P11 through P17. However, these positives may differ for each of the projectors P11 through P17 accordingly with differences in the rate of enlargement which may occur from differences in the ratio "c", and consequently, they cannot be used commonly for all these projectors, thus requiring them to be prepared separately. This may undoubtedly cause a substantial trouble in the preparation of such positives, thus making one of the causes that a scaled-down sculpture work cannot escape a poor productivity.
- In addition, there is a problem such that a thinner sculpture may possibly be obtained by way of the conventional method in comparison with the case of life-size sculptural work.
- In consideration of such drawbacks which have been inevitable in the conventional process, it would be desirable to attain an efficient solution therefor.
- The present invention is essentially directed to the provision of a useful solution to such a difficulty in practice as referred to above and experienced in the conventional stereophotographic process for producing a works of sculpture.
- Therefore, it is a primary object of the present invention to provide an improved stereophotographic process for producing a stereoscopic sculpture with a reduced scale, more specifically with a reduction ratio of 50% or more to an original object to be sculptured.
- The present invention is directed to the provision of the improvement to attain the object stated above in, as summarized in brief, a process of producing a stereoscopic sculptural work on the basis of a stereophotographic process by arranging a plurality of photographic cameras and a plurality of optical projectors, each being loaded with a transparent screen having a plurality of parallel lines therein, around an object to be photographed at a predetermined object distance, arranging another plurality of projectors operatively around a mass of material to be modeled at such an operative distance of projection that they may be located in a similar position to that of each of the cameras to project the screen therefrom onto the object to take a photographic picture of a striped pattern in the screen projected onto the object, loading the projector with thus-taken picture to be projected onto the mass of material to be modeled, and modeling manually the mass of material to make the projected lines meet and coincide with each other as appeared thereon and to obtain a similar sized sculptural work to the object; a process of producing a stereoscopic sculptural work on a reduced scale which comprises the steps of setting to reduce distance of projection and a focal length of each of the lenses of the plurality of projectors directed to the object and loaded with the picture accordingly to the desired scale of reduction with respect to the object to be sculptured, and preparing the picture of striped pattern projected upon the object to be reduced accordingly to the scale of reduction to be loaded onto the projector.
- Additional features and advantages of the invention will now become more apparent to those skilled in the art upon consideration of the following detailed description of a preferred embodiment exemplifying a best mode of carrying out the invention as presently perceived. The detailed description refers particularly to the accompanying drawings, in which like parts are designated at like reference numerals.
-
- FIGS. 1 and 2 are schematic top plan views showing by way of a preferred concept the general construction of a stereophotographic arrangement of cameras and stereoscopic sculpture producing apparatus which employs the improved stereophotographic process according to the present invention;
- FIGS. 3 and 4 are like schematic views showing another embodiment of the invention, in which FIG. 3 is a conceptual view showing the manner to process a positive photographic picture and FIG. 4 is a like conceptual view showing the manner of producing a stereoscopic relief;
- FIGS. 5(I) and 5(11) are schematic top plan views showing conceptually the general construction of a stereophotographic arrangement of camera and sculptural apparatus employing the conventional stereoscopic sculpture;
- FIG. 6 is a schematic view showing an example of a screen to be projected onto an object, and
- FIG. 7 is a schematic top plan view showing conceptually the general arrangement of a typical conventional sculpture producing process.
- The present invention will now be explained in detail on an improved stereophotographic process of producing a stereoscopic sculpture of a three-dimensional object by way of scales of reduction to 50% and 60% (hereinafter referred to as "50% sculpture" and "40% sculpture") as preferred embodiments thereof with reference to the accompanying drawings herewith.
- The following description in conjunction with FIG. 1 will be directed to the 50% sculpture, and the description with FIG. 2 will be concerned with the 40% sculpture.
- Incidentally, the present method of producing works of sculpture by way of a preferred embodiment of the present invention is comprised of a stereophotographic process and a sculpture producing process as in the conventional process.
- So far as the stereophotographic process is concerned, it may be conducted in all the same manner as the conventional process using the group of cameras 1, and therefore, no detailed description will be made in this connection (see FIG. 5(I)).
- Referring now to the sculpture producing process by way of this embodiment to produce a 50% stereoscopic sculpture, firstly, a
frame 11 is prepared proportionally to the shape of and accordingly to the scale of reduction to 50% on the part of theframe 2, and then there are disposed a group of projectors P21 through P27, in the corresponding locations for the group of cameras C1 through C7 so as to form a stereoscopic sculpture producing apparatus 12 (see FIG. 1). The lenses of these projectors P21 through P27 have a focal length half as long as that of the lenses of the cameras Ci through C7, respectively. - When producing a 40% sculpture, a
frame 13 is prepared proportionally in shape of and accordingly to a scale of reduction of 60% with respect to theframe 2 for the stereophotographic process, and then, a group of projectors P31 through P37 is located operatively along the extension of theframe 13 in position corresponding to those for the group of cameras Ci through C7 of the stereophotographic apparatus 1, thus providing the stereoscopic sculpture producing apparatus 14 (see FIG. 2), Each of the lenses of these projectors P31 through P37 have a forcal length reduced to 60% of that of the lens of the corresponding one of the cameras C1 through C7, respectively. - Referring now to FIG. 1, the both end points of the
frame 11 are designated "E" and "F", and the lower corners thereof are designated "G" and "H", and next to FIG. 2, the both end points of theframe 13 are designated "I" and "J", and the lower corners thereof are designated "K" and "L", respectively. - Also, the reference characters P21 through P27, and P31 through P37 are adapted to designate the projectors, as well as the lenses per se thereof, conceptually.
- Moreover, there are seen reference points 02 and 03 in the
frames references - Now, it is assumed referring to the 50% down scale that the focal length of each of the lenses of the projectors P21, P22, P26, P27, P28 and P30 is 25mm, and the focal length of each of the lenses of the projectors P23" P24 and P25 is 37.5mm, respectively.
- It is also assumed referring to the 60% down scale that the focal length of each of the lenses of the projectors P31, P32, P36 and P37 is 20mm, while the focal length of each of the lenses of the projectors P33, P34 and P35, respectively.
- Now, assuming that the distance from the lens of each of the projectors P21 through P27 or P31 through P37 to the point 02 or 03 is a, and that the distance between each of these lenses and the picture or screen loaded in the projectors is b, there are obtained the distances a and b as follows, using the relationship as obtained from the equation;
- The dimensions are as follows EG = FH = 518mm; HG = 248mm
-
P 21 O 2 =P 27 O 2 - P2202 = P2602 = 265mm;
-
P 23 O 2 =P 25 O 2 - P2402 = P2702 = 400mm
-
- (i) For the projector P24
With a = 400mm and f = 37.5mm;- c = 41.38 / 82.76 = 0.50
- (ii) For the projectors P23 and P25 With a = 335mm and f = 37.5mm;
- c = 42.23 / 84.45 = 0.50
- (iii) For the projectors P22 and P26 With a = 265mm and f = 25mm;
- c = 27.60 / 55.21 = 0.50
- (iv) For the projectors P21 and P27 With a = 325mm and f = 25mm;
- c = 27.08/54.17 = 0.50
- The dimensions are as follows;
IJ =KL = 414.4mm;LJ = 30mm; - 03203 = 212mm; P33O3 = 2680mm;
- P3403 = 320mn
-
- (i) For the projector P34
With a = 320mm and f = 30mm;- c = 33.10 / 82.76 = 0.40
- (ii) For the projectors P33 and P35 With a = 268mm and f = 30mm;
- c = 33.78 / 84.45 = 0.40
- (iii) For the projectors P32 and P36 With a = 212mm and f = 20mm;
- c = 22.08 / 55.21 = 0.40
- (iv) For the projectors Psi and P37 With a = 260mm and f = 20mm;
- c = 21.67 / 54.17 = 0.40
- As is apparent from the foregoing, the ratios as obtained for each of the group of projectors P21 through P27 and P31 through P37 are constant for each of the scales of reduction so specified, and moreover, the value b for each of the projectors decreases as the scale of reduction becomes smaller. For example, it is notable that each value b for producing 50% sculpture will be reduced to be 50% of or half as large as the value b for the production of a life-size sculpture, and that each value b for producing 40% sculpture will be reduced to be 60% less than or 40% of the value b for the production of a full-size sculpture, respectively. For this reason, the general arrangement of stereoscopic
sculpture production apparatus sculpture production apparatus - With a constant ratio of c in any scale of reduction, a single set of positives may serve for the production of sculpture to a desired scale of reduction, which may then be used in a given group of projectors set on the frame for a desired scale.
- In addition to the production of a stereoscopic sculpture, this arrangement can equally be adapted to the production of relief works, either.
- More specifically, it may be arranged for this purpose that a third positive is prepared in the manner disclosed in Japanese Patent Publication No. 7,494/1974 prior to the loading of the pictures as taken by the arrangement of cameras 1 into the arrangement of stereoscopic
sculpture production apparatus - For more details of the production of a relief work, refer to Japanese Patent Nos. 320,203; 676,163 and 1,076,791, etc.
- Of course, it is needless to mention that any scales of reduction may be applied in practice for the production of a stereoscopic sculptural work.
- Incidentally, referring further to the shape of a frame structure to be employed, it may not necessary to make the frame for use with a stereophotographic arrangement similar in shape with the one for a stereoscopic sculpture production arrangement, and so, what is required essentially is that the group of projectors of the sculpture production arrangement may be located in position corresponding in similarity to that for the group of cameras and projectors of the stereophotographic arrangement, and so, a frame structure may be prepared with any desired shape if it may satisfy this requirement, accordingly.
- Now, reference is made further to the method of producing a relief work by using the arrangement according to this invention.
- The term "a relief work" as used herein is directed to generally mean a carving or raised work embossed in a plane with a partial solid or three-dimensional appearance.
- For the production of a relief work, a third positive transparency is required to be prepared. The preparation of this third positive transparency is made in the following manner.
- For example, referring to FIG. 5(1), an
object 3 to be pictured is projected preliminarily with a screen 4a (see FIGS. 6(I) and (II)). Next, theobject 3 is photographed by using the group of cameras C3, C4 and Cs belonging to the stereophotographic apparatus 1. For convenience of description, the picture taken by the came C4 is defined a first positive picture, and the pictures taken by the cameras C3 and Cs are defined a second positive picture, respectively. - In the following, the process of producing a relief work on the right half part of the
object 3 for clarity of explanation. - Now, it is assumed that a reference plane GP which is perpendicular to a segment C4Y defined by a phantom perpendicular Y and passing the lens of the camera C4 in place of the
object 3, and upon this plane a second positive picture taken by the camera Cs is projected by using theprojector 15. - FIG. 3 shows the state that the second positive picture of the camera C5 is projected by using the projector P15.
- Next, using a camera C6 disposed at an angle β degree centered at the point 01, an optical image projected upon the reference plane GP from the projector Pis is photographed. The picture taken by this camera C6 may serve a third positive picture used for the production of the normal life-size relief work.
- For the preparation of a relief work reduced to a certain scale in this embodiment of the invention, a further operation is required as follows.
- In the case that a relief work is to be made on 50% down scale as in the case of a stereoscopic sculptural work, it is required that the normal third positive picture prepared in the foregoing step is reduced to be a half scale or 50% smaller accordingly to the required scale of reduction noted above (hereinafter, this reduced positive picture is referred to as "a reduced third positive" for clarity).
- In the like manner, the first positive picture as taken by the camera C4 is reduced to be a half scale or 50% smaller in accordance with the required scale of reduction (hereinafter, this is referred to as "reduced first positive").
- Then, thus-obtained reduced first and third positives are loaded into the projectors P24 and P26 of the stereoscopic
sculpture production apparatus 12 2 to be projected upon the reference plane, and this state is shown in FIG. 4. - As shown typically in FIG. 4, firstly placed is a mass of material such as clay upon the reference plane GP, and then, a projector P26 loaded with the third positive is operated to throw overlapping patterns of parallel lines or stripes onto the reference plane in such a manner that there are seen a plurality of crossings M1, M2, M3 ,,,,, defined with the parallel lines projected from the projector C26 on the surface of the mass of clay, and the operator or sculptor may shape or model the mass by adding or removing clay to make proper striped patterns so as to obtain a 50% down-scaled
relief work 17 on the reference plane GP, accordingly. - While the foregoing description referred to the relief modeling work only on the right half side of the
work 17, it may be effected equally in the entirely symmetrical manner on the left half part thereof with the employment of the cameras C3, C2 in place of those C5, C6 and of the projectors P22 in place of the one P26, respectively. - There may be attained many equally advantageous effects available from the compactness of the sculpture production arrangement and the projectors therefor in the manufacture of a reduced relief work, which is exactly like in the case of producing a reduced stereoscopic sculptural work.
- While it was described in connection with the stereoscopic sculpture production process that a third positive picture was prepared to a desired scale of reduction so as to form a reduced third positive, this invention is not restricted in use to this embodiment, but a reduced second positive may of course be processed to obtain a reduced third positive, accordingly.
- It is an essential matter to the invention in the production of a relief work to obtain a reduced third positive transparency, which may be understood readily when considering the presentation on the embodiment noted above to obtain a reduced third positive, and also which may be adapted equally with ease to another art relating to the production of a relief work such as disclosed in Japanese Patent Nos. 320,203 and 1,076,791, and the like, and therefore, no further explanation is given on such applications.
- As stated fully hereinbefore, according to the method of and apparatus for producing a stereoscopic sculptural work according to the present invention, as it is possible in practice to make the distance "b" from the projector lens to the mass of material smaller in accordance with a desired scale of reduction in the production of a sculptural work, the dimensions of such projectors may be made smaller in size, thus making smaller the entire arrangement for producing a sculptural work, accordingly, and thus making the transportation of the entire arrangement so easier than the conventional arrangement.
- As stated also hereinbefore, since each of the projectors may be made smaller in size, they may not project outwardly from the extension of the frame structure, and there is no obstruction to the operator's manual operations by reaching from the outside of the frame structure in the production of a sculpture work on a reduced scale, thus effecting a substantial efficiency in the production work of such a down-scaled sculpture, accordingly.
- Furthermore, nothing that the distance of "b" as observed in connection with the disposition of each of the projectors become a value which may reduce at the same rate in accordance with a desired scale of reduction in the production of a sculptural work according to the present invention, it is an easy job to adjust the location of such projectors when installed onto the frame structure.
- In addition, according to the present invention, as the ratio "c" with respect to the distance "b" in a given projector is constant, the scale of reduction of a positive transparency to be loaded into such projectors may turn to be constant, thus making it possible to commonly use positives of the same scale of recution, and thus making easier the preparation of such positives in the sculptural work. From such standpoint, it is feasible in practice to improve the efficiency of sculptural work, accordingly.
- Moreover, according to the present invention, there is attainable a better finish in the production of a stereoscopic sculptural work, free from an effect of becoming thinner than the actual original, thus contributing to an improvement in accuracy in finish of the work.
- Furthermore, the process of this invention may equally be adapted to the production of a relief work, in which there may also be attained a similar advantageous effect to the case of stereoscopic sculptural work.
- It is to be understood that the appended claims are intended to cover all of such generic and specific features particular to the invention as disclosed herein and all statements relating to the scope of the invention, which as a matter of language might be said to fall thereunder.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88730233T ATE89904T1 (en) | 1987-10-26 | 1988-10-25 | PRESSURE TANKS FOR STORING HIGH PURITY GASES. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3736579A DE3736579C3 (en) | 1987-10-26 | 1987-10-26 | Pressure tank for storing gases of high purity |
DE3736579 | 1987-10-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0314609A2 true EP0314609A2 (en) | 1989-05-03 |
EP0314609A3 EP0314609A3 (en) | 1989-11-29 |
EP0314609B1 EP0314609B1 (en) | 1993-05-26 |
Family
ID=6339296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88730233A Expired - Lifetime EP0314609B1 (en) | 1987-10-26 | 1988-10-25 | Pressure container for gases of high purity |
Country Status (5)
Country | Link |
---|---|
US (1) | US4884708A (en) |
EP (1) | EP0314609B1 (en) |
AT (1) | ATE89904T1 (en) |
DE (1) | DE3736579C3 (en) |
ES (1) | ES2041333T3 (en) |
Cited By (2)
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0370986A2 (en) * | 1988-11-24 | 1990-05-30 | Sandvik Aktiebolag | Coupling for gas container |
EP0370986A3 (en) * | 1988-11-24 | 1990-12-27 | Sandvik Aktiebolag | Coupling for gas container, container and method of making the container |
US5082243A (en) * | 1988-11-24 | 1992-01-21 | Sandvik Ab | Gas container, a coupling for a gas container, and a method of making a gas container |
CZ305422B6 (en) * | 1999-05-26 | 2015-09-16 | Boehringer Ingelheim Pharma Gmbh & Co. Kg. | Canister for propellant-driven metering aerosols, container for the canister, use thereof and process for producing container or canister |
Also Published As
Publication number | Publication date |
---|---|
US4884708A (en) | 1989-12-05 |
EP0314609B1 (en) | 1993-05-26 |
DE3736579C2 (en) | 1991-05-23 |
DE3736579A1 (en) | 1989-05-03 |
ES2041333T3 (en) | 1993-11-16 |
DE3736579C3 (en) | 1996-10-17 |
ATE89904T1 (en) | 1993-06-15 |
EP0314609A3 (en) | 1989-11-29 |
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