US 369478 A
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Description (OCR text may contain errors)
E. A. SNOW.
No. 369,478. Patented Sept. 6, 188 7.
INVENTOR: I 63% 5 ATTORNEYS WITNESSES Q M2, 5 ,1 MW) nnwm A. snow, or JACKSONVILLE, NEW roan.
SPECIFICATION forming part of Letters Patent No. 369,"i8, dated September 6, 1887.
Application died February 7, 1887. Serial No. 228.781. (No model.)
To all whom it may concern.-
Be it known that I, ELWIN A. Snow, of Jacksonville, in the county of Tompkins and State of New York, have invented a new and Improved Pavement, of which the following is a full, clear, and exact description.
The object of my invention is to provide a pavement that can be readily and quickly laid,
and which will be durable and self-supporting over uneven ground, ditches, 85c.
My invention consists of aseries of plates or blocks having on their under surface supporting-bars.
It further consists of means for locking the plates together, and of the construction and combination of the different parts, all as will a single plate adapted for a cross-walk. Fig.
4 is an inverted plan View of the same.
In the drawings, a represents the plates which make up the pavement and walk.
The plates a, with the exception of the corner-p1ate,have the beveled projectionsband the corresponding beveled recesses, c,to receive the projections b when the platesa are in position.
The corner-plate has the beveled recesses o,but not the projection. Theprojection b of one plate fits in the recess a of the corresponding plate, thus securely holding the plates a from lateral displacement. The supporting-bars (Z on the under surface of the plates a project slightly in advance of one end of the plates a, and at the opposite end they are flush with the said plates. The ends of the bars cl are reduced, and when the plates a are in position a reduced lapped joint is formed. The reduced parts 6 of the bars d have the beveled ends j and the beveled shoulders g. The ends f of the bars (I of one plate set into the beveledshoulders g of the bars of the corresponding plate. The dovetailed blocks h fit into corresponding dovetailed recesses, 72. The locked joint thus formed admits of easy adjustment, and also securely locks the plates a and bars d together. The plates a are also looked in position by the bolts j of one plate passing through keepers k on the corresponding plate.
In Fig. 3 I have shown an arched plate or block adapted for a cross-walk. This plate is made heavier at its base and has the beveled sides l,so that vehicles in riding over the walk will not displace the same. By having the plates arched a stream of water has free way under the walk across the road. In this plate the connecting-bars and locking arrangement are the same as above described. The bolts j of one plate pass into cavities m of the corresponding plate.
The plates of this pavement and walk, as well asthe supporting-bars, I prefer to make of cast'iron; but they may be made of any suit able material. It is specially adapted for use over uneven ground, across ditches, creeks, 850.; as it is self-supporting.
Having thusfully described my invention, what I claim as'new, and desire to secure by Letters Patent, is I 1. A pavement composed of aseries of plates having integral longitudinal interlocking plates formed on their undersurfaces,substantially as set forth.
2. In a pavement, a plate having a beveled recess in one end, a beveled projection at its opposite end, and parallel longitudinal supportingbars on its under surface integral therewith and projecting beyond one end of the plate, substantially as set forth. e
3. In a pavement, the plate a, having the beveled projection b at one end, the beveledrccess c in its opposite end, in line withthe projection and of a size corresponding there- 0 with, the bolt j, projecting beyond one end of the plate,and the keeper k at the opposite end of the plate, in alignment with the bolt, sub" stantially as set forth.
4. In a pavement, the plate a,having the in- 95 tegral parallellongitudinal supporting-bars d, projecting beyond the plate at one end andvertieally reduced at opposite sides of their opposite ends, as at e, to form interlocking joints with the adjacent plates, the ends of the re- I00 .duced portions being beveled, as atfg, substantially as set forth.
5. In a pavement, the plate a, having the parallel longitudinal bars d, formed on its un der side and vertically reduced at opposite sides of its opposite ends, as at e, the inner faces of the reduced portions at one end having the vertical dovetail blocks, and the (lovetail recesses din thcinuerluces of the reduced portions of the opposite ends, substantially as set forth.
6. In a pavement, the arched crossing-plate 10 0, having its longitudinal side edges beveled, as shown at, Z Z, and having the integral parallel longitudinal supporting-bars d on its under surface, substantially as set; forth.
ELWIN A. SNOW. Witnesses:
J. 1Q. BROWN, W. E. DEAN.