USRE2748E - Samuel nicolson - Google Patents

Samuel nicolson Download PDF

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Publication number
USRE2748E
USRE2748E US RE2748 E USRE2748 E US RE2748E
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US
United States
Prior art keywords
blocks
pavement
wooden
principal
foundation
Prior art date
Application number
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English (en)
Inventor
Samuel Nicolson
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  • foundation alonga street or roadway with f1 cility, eheapness, and accuracy; and also in the creation and construction of such a wooden pavement for streets and roadways as shall be comparatively permanent and durable by so uniting and combining all its parts, both Superstructure and foundation, Aso as to provide against th slipping ⁇ of the horses feet, against noise, vagainstv unequal wear, and against rot on or from the top surface, and against rot and consequent sinking away from below.
  • FIG. 1 represents a perspective'view o1' further perspective view of a section-of the the 'said pavement constructedand in the process of construction after the second plan or modification; and Fig. 2, Drawing No. II, a
  • the one set of blocks which may be called the principal77 set of blocks, forms, when the pavement is completed7 the wooden surface ofthe pavement, and the other Qr auX- iliary set of blocks or strips forms no partof lthe wooden surface of the pavement, but determines the size of the groove or channel way between .the principal blocks, which is afterf ward .to be filled with broken stone7 gravel, and tar, while the principal set of blocks niust be of uniform height and of suitable texture to form a' proper surfacev for the-pavement.
  • the auxiliary set Yneed be of fno particular height or texture; but ⁇ they must not 'perillanently and entirely fill the grooving intended for the gravel, broken stone, and tar when the pavement is completed.
  • the prinoipalset of blocks is cut with parallel sides, VAlines, or surfaces from ioist ortimber about fourinches square, or of other suitable shape anddimensions in cross-sections, being made eight-inches in length.
  • the auxiliary blocks may be formed o'f about halfthe lengthfof theothers; .but they must be of such. thickness or cross-section as to form the proper boundary of the groove.
  • the principal blocks are placed end upward upon said foundation er support, and are arranged both transversely and longitudinally', ⁇ Vso that the principal and the'auxiliaryblocks' Shill' bdari'aged alter: nately in eachV direction, or run asseen in the diawings., By'sueh anrarrangement spaces or The auxiliary strip may be about half the No. Il.
  • the principal blocks are arranged side p by side transversely of the roadway, alternately pal blocks.
  • cells c c c, between the principal blocks are formed, each of said cells being bounded by four of the principal blocks.
  • the upper ends ofthe principal blocks when thus placed together, present a checkered or tessellated appearance, and they will exhibit the open spaces arranged together in a similar manner. lnto each of these cells a small quantity or 'layer of coarse salt may be put.
  • These cells are filled up with small broken stone or coarse clean gravehthe whole being firmly rammed, so that the upper surface ofthe mass shall be firm and level.
  • mineral or vegetable tar or pitch is to be poured over the whole surface of the pavement and into the cells or cavi-ties containing the broken stone or gravel, so as to penetrate entirely between the pieces of stone or gravel and cement them together.
  • Thetar penetrating into the squares containing the broken stone or gravel will cause the masses of the stone t'o adhere firmly to the surrounding blocks, and will admit of expansion of the mass by the weight of the wheels of carriages in passing over them, such eX- pansion serving to fill up the space which might otherwisev be made by shrinkage of the wooden blocks.
  • any other suitable cementing material may be employed in the cells I prefer, however, commonI tar or pit-ch and gravel or brokenV stone, as such in practice has been found to operate to vgreat advantage and to be very durable .in use and to present a surface on which it is very difficult for horses to slip or slide, as is frequently the case on ordinary pavements when the surface is wet or covered with mud.
  • My invention may lie-carried out in another form-that is to say, upon the plan or second modification seen in Figs. 1 and 2 of Drawing with strips of board, cdgewisc or vertical, in thickness about one-third of the principalA blocks, placed transversely upon the foundationv or support, and in this mode of construction so arranged as to form spaces of about one inch in thickness between the rows of princi- I wouldremark, as to the durability of my pavement, that for the purpose of experiment I have had some ofit in use for six years before the month of March, 1854, on a road on which the travel has been very great.

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