US 1349901 A
Description (OCR text may contain errors)
COATING 0R PLASTIC. V
w. MEISCHKLSMHH. rennocoucasrs'consmucnom APPLICAWN FILED DEC. l5, 19.18.
1,349,901 Patented Ang. 17, 1920.
ceAiINe R PLASTIC.
WIIIIZIIIAIIYI MEISCHKE-SMITH, 0F SAN FRANCISCO, CALIFORNIA.
Specification of Letters Patent.
Patented Aug. 17, 1920.
Application led December 16, 1918. Serial No. 267,036.
To all 'whom t may concern:
Be it known that I, lNiLLiAM MEiscHKE- SMITH, a subject of the King of Great Britain, residing in the cit and county of San Francisco, State of alifornia, have invented a new and useful Ferroconcrete Construction, of which the following is a specication.
My invention relates to a ferro coiicrete 10 building material consisting of a homogene"- ous mixture of cement and short ieces of wire of such imensioiis an propor ioi that the wire may be readily mixed with the cement and will not sink in the cement body but will remain distributed throughout the mass of cement until the cement has set. Further I have determined that by so using steel wire of proper proportion and dimension a he strength of the mass is materially increased so that the material so produced may be used in all kinds of construction in which the common reinforced concrete is now used thereby changing the nature of the work now required in such construction, that is, by using my invention the rods ordinarily used are dispensed with and a great amount of time and Skilled labor required to fabricate the reinforcement as now used is done away with,
resulting in a great saving in the cost of construction.
I am aware that short pieces of round y wire have been placed in a form and concrete poured thereon and that fine particles 85 of wire have been distributed in a concrete mass, but my invention is not to be confused with such construction as the form of wire used by me is essential and necessary to obtaining the results desired. The wire used and which I have determined as my invention, the reinforcement U being shown of approximately the proper size.
Fig. 2 is a sectional view of a portion of a wall and arch showing the distribution of the reinforcement therein, and
Fig. 3 is an enlarged perspective view of 55 one of the reinforcing members shown in the preceding figures. 5 represents a block of material consisting of a cement body 6 having suspended therein and distributed throughout the massof cement reinforcing units consisting of wlre members 7. These members 7 each consist of a lat twisted wire having dat faces 8. It is to be understood that an important feature is that the metal shall have sustaining surfaces, that is, flat surfaces as shown at 8 which permit the cement to hold the reinforcement in suspension in the body of concrete during the setting of the cement. Best results have been attained by using such metal units of a ip roxiniately one inch in lenl'i, one one-liunnledt-ha an inch in thickness and a width of three n using my Invention the metal units are placed in the cement durin its course of preparation and thoroug ly mixed throughout the mass after which the mixture is poured into forms such as are commonly used in reinforced concrete construction and allowed to set.
'As illustrated in Figs. l and 2 of the drawing the members 7 arrange themselves in all directions in the mass forming a reinforcement which, due to the tensile strength 35 of the metal of which the members 7 consist, strengthens the structure sufficiently to permit the disuse of the long bars and ties ordinarily used.
A strong bond between the reinforcing 9o units and the cement is made by the twist of the wire forming the units and the flattened wire forms faces or surfaces which offer resistance to the mass before setting so that the reinforcing units remain distributed during the setting operation thereby strengthening the structure throughout.
I claim as my invention:
1. A ferroconcrete construction comprising a body of cement and metal reinforcing units distributed` throughout the cement body consisting'of disconnected pieces of 2 i l u Y Y 1,349,901
Hat wire so formed as to form a mechanical disconnected pieces of twisted Hat steel Wire bond with the cement. having Hat faces.
2. A ferroconcrete construction eompris- In testimony whereof I have hereunto set ing a body of cement and reinforcing units my hand at the city and county of San 10 5 distributed in indiscriminate directions Francisco, this 6th day of December, 1918. throughout the cement body consisting of WILLIAM MEISCHKE-SMITH.