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Publication numberUS1776999 A
Publication typeGrant
Publication dateSep 30, 1930
Filing dateMay 1, 1928
Priority dateMay 1, 1928
Publication numberUS 1776999 A, US 1776999A, US-A-1776999, US1776999 A, US1776999A
InventorsJensen Lars D
Original AssigneeJensen Lars D
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Means and method for forming artificial-rock scenery
US 1776999 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

L. D. JENSEN Sept. 30, 1930.

MEANS AND IBTHOD FOR FORMING ARTIFICIAL ROCK SCENERY Filed May 1, 1928 1 IN V EN TOR. 11.44952? W Em. Z

Patented Sept. 30,1930

ENT' OFFICE LABS D. JENSEN, OF IDIEG-O, G QLIFORNIA MEANS AND METHOD son FORMING AnrI'F I oIAn-nooK scEnERY Application filed May 1, 1928;; Serial 1193274 337 I My invention relates to means and method for forming artificial rock scenery, and the objects of my invention are; first, to provide a process for forming artificial rock structure 5 from plastic material; second, to provide a simple and economical means and method for forming the outer surface of rock structure composed of plastic material; third, to provide a means and method of this class in which an infinite variety of shapes and forms are produced; fourth, to provide a process for forming artificial rock structure in which paper is used as the'surface forming medium; fifth, to providea novel means and method for forming extremely irregular exterior surfaces for plastic walls from which the forms may be easily removed ;'and, sixth, to provide a process of this class which is extremely economical and which will provide a weather-resisting and Water tight homogeneous structure.

With these and other objects in. view, as

will appear hereinafter, my invention consists of a certain novel form and process. for forming artlficlal rockscenery structure, as w1ll be herelnafter described in detail and particularly set forth in the appended claims,-.

sectional view thereof taken along the line 2-2 of Fig. 1; Fig. 3 is a perspective View of a crinkled sheet forming a curved mold showing method of propping, and Fig. 4 isa plan view thereof.

Similar characters of reference refer to similar parts and portions throughout the several views of the drawings. 1

The crinkled paper 1, frames 2 and 3, props 5 and 6, form the principal parts of the mold employed in my novel artificial rock scenery. The crinkled paper 1 is preferably supported on a frame 2 comprising upright members E2, and horizontal members 2", the paper being tacked or otherwise secured to the frame Where necessary to hold it in any suitable position. It will be understood that the same may be held at various angles and may assume curved shape, if desired; The rear portion 3 of the. mold may ,be made of board supported I on uprights 3 or any other means of supporting the compound wherenot normally visible may be employed. The compound l is poured into the mold care being. taken to prevent rupture of the crinkled paper indoing so, and after the compound has set the mold is removed leaving the irregular rock like surfaceitisdesired toobtain. In some cases it is quite practical to support thecrinkled paper by means of props 5 and pegsfd, as illustrated in Figs; 3 and 4:, which show a perspectiveand planview of my novel mold as applied in the formation of a curved portion of a wall or cliff. "The props 5 are of suitable length and may be' embedded at their lower end in the adjacent soil while the pegs may be driven in at suitable points to preventthe lower edges of the paper from shifting ,as the compoundlis poured against the paper. 'I-find that itis possible to use ordinary newspaper sheets for this purpose; however.- it'is frequently more desirable to uses. stifferfpaper and it is also advantageous to impregnate the paper with a moisture proof material,such as paraffin-wax, kero- "sene, tar, orv the like, before'or. after it has "been crinkled. This both increases its rigidity and prevents-it from rupturing due to the water or excessive pressure of the mass of plastic compound used. Owing to the'peculiar shapes of the paper mold'when crinkled, it is possible to obtain a surface which closely simulates that of natural rock and this process thereby produces a very pleasing and realwalls, and the like. It is, of course, obvious that only that portion of the mold forming the surface which is subjected to view and desired to be formed with agged and uneven surfaces need be made of the crinkled paper, or similarmaterial, while the other surfaces may be formed in any suitable manner such as by means of wood, wire-netting, or the like.

Though I have described a particular means and method for forming artificial rock scenery, I do not wish to be limited to this istic effect when used for constructing in situ artific al cliffs, caves, garden scenery, ponds,

particular means or method, but desire to include in the scope of my invention the means or method substantially as set forth in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a mold for forming artificial rock scenery from a plastic compound, a forming surface made of crinkled paper providing an irregular, agged surface and braces for supporting said forming surface in posi tion.

2. In a mold for forming artificial rock scenery, a forming surface made of crinkled paper, said paper providing an irregular, jagged surface being impregnated With a Water proofing substance, and braces for supporting said forming surface in position.

3. In a mold for forming artificial rock scenery from a plastic compound, a forming surface made of crinkled, semi-flexible, semi-rigid material with a Water proofing substance forming an irregular, jagged sur face and braces for supporting said forming surface in position.

4. In a mold for forming artificial rock scenery in situ from plastic compound, a forming surface made of crinkled sheets forming an irregular, jagged surface, adapted to retain substantially its form While said plastic compound sets, and an exteriorly positioned frame for supporting said sheets in position, said frame bearing against said sheet in relatively Widely spaced points only.

In testimony whereof, I have hereunto set my hand at San Diego, California this 26th day of October 1927.

LARS D. JENSEN.

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Classifications
U.S. Classification249/114.1, 249/140, 249/189, 264/31, 428/15, 249/15, 52/316, 264/337, 156/61
International ClassificationB44F9/04, B28B7/00, B28B7/34, B44F9/00
Cooperative ClassificationB28B7/007, B44F9/04, B28B7/34
European ClassificationB28B7/00F2, B28B7/34, B44F9/04