US1066092A - Flexible mattress. - Google Patents

Description

N. B. BLLERY.

FLEXIBLE MATTRESSl APPLICATION FILED JAN. 21, 191s;

Patented.` July 1, 1913.

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FLEXIBLE MATTRESS'.

Patented Julyl, 1913.

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QW ///m l APPLLUATION FILED M N. 21, 19131 1,066,092.

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NATnANrnL B. ELLERY, or sAN FRANCISCO, CALIFORNIA.

FLEXIBLE MATTRESS.

Specication of Letters Patent.

Patented July 1 1913.

Application filed January 21, 41913. Serial No. 743,311.

bankments wherein live brush, of either cotton-wood or willow, is secured to and caused to grow on the bank or embankment that is exposed to erosion by rapid currents, and its objects are, first, to provide an improved mattress of the character described that will adapt itself to the irregularities of the surface below the water, and second, to promote the growth of brush on the bank or embankment that is exposed to erosion by rapid currents for the purpose of preventing such erosion.

For a full and clear comprehension of my invention reference should be had to the drawings forming a part of this specification wherein like numerals of reference refer to similar parts throughout the said speciication and drawings, and in which- Figure 1 is a plan view o-fa portion of a flexible mattress shown in successive stages of construction. Fig. 2 is a cross section of a completed mattress, on an enlarged scale, in position on a bank or embankment to be protected.

The numeral l is used to vdesignate a number of fixed posts and 2 is a longitudinal cable running through the posts 1 and to which is secured the transverse cables 3. Each alternate cable 3 has its upper end molded into one of the posts l and the other end thereof has a weight or anchor I secured thereto. Two longitudinal cables 5 are secured to the transverse cables 3 and to the network thus formed a number of live brush rolls 7 are secured by means of the binding wires 8, the said wires 8 extending from one selvage cable 5 to the other. Concrete orother suitable weights 9 are laid upon the brush rolls 7 and are held in place by means of cables or wires 10 which are secured to the weights 9 and which pass between the rolls 7 and engage the transverse cables 3 to which the said rolls 7 are secured. In this manner live brush of willow or cotton-wood is secured tothe bank or embankment to be protected until such time as the said brush shall take root-in the said bank or embankment. Contact of the live brush with every portion of an irregular bottom or surface is insured 'by the weight of the anchors v5 and the weight-s 9.

After the brush has' sprouted'and taken root 1n the .earth of the bank or embankment the agglomeration of roots thus formed constitutes a proper protection for the said bank or embankment against erosion by the currents. after the retaining network of ca bles have been corroded by the action of the Water and are no longer capable of retaining the flexible mat of the live brush in position.,

The live brush ro-lls sprout and take root readily in the earth of the bank or embankment to which they are secured for the reason that the contact with the earth is insured by the weights 4 and 9 and their rapid growth is further facilitated by t-he water in which they are submerged.

It is obvious from the foregoing that I have provided a flexible mattress that is adapted to serve as a revetment for banks and embankments for the purpose of preventing the erosion thereof by rapid currents and also a flexible mattress of the character described that is adapted to maintain a contact with every portion of an irregular surface. I have also provided means for insuring the growth of brush on banks and embankments for the purpose described.

The details of construction being so susceptible to variation I do not wish to conline myself to the precise construction shown herein but rather to avail myself of any modification that may properly fall lwithin t-he scope of my invention. For instance, it is immaterial in what manner the brush is secured to the cables or in what manner the weights 9 are retained. It is the purpose of my invention to secure a revetment of live brush to a bank or embankment, which is exposed to erosion by the action of rapid currents, in such a manner that they shall be continually submerged and in constant contact with every portion of an irregular submerged surface of such bank or embankment.

Having thus described my invention what I claim as new and desire to secure by Letters Patent isl. In a flexible mattress of the character described, the combination of a plurality of fixed posts in an embankment to be prolio tected against erosion by rapid currents; a longitudinal cable connecting the said posts; lateral cables connected to the longitudinal cable and having Weights secured to the lower ends thereof; longitudinal cables see cured to the lateral cables; rolls of live brush secured to the lateral cables; and means for submerging the cables and the ro-lls of live brush secured thereto.

2. In a flexible mattress adapted to serve as a revetment for banks and embankments the combination of a plurality of Xed posts in the bank to be revetted and above the water line; a longitudinal cable secured t0 and` connecting the Xed posts; lateral cables having Weights secured to the loWeil end of each alternate cable secured to the fixed posts and the longitudinal cable; longitudinal selvage cables secured to the lateral cables; live brush rolls Secured to the lateral cables and between the longitudinal selvage cables; and Weights secured to the lateral cables and adapted to submerge the lateral and selvage cables and the live brush secured thereto.

In Witness whereof I hereunto set my signature in the presence of tWo subscribing Witnesses.

NATHANIEL B. ELLERY.

Witnesses:

ARTHUR W'HITE, CHAs. F. DUISENBERG.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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