US 952918 A
Description (OCR text may contain errors)
O. P. MANN.
APPLIGATION PIVLBD JULY 24, moo.
952,91 8. Patented Mar. 22, 1910.
OSCAR F. MANN, F INDIANAPGLIS, INDIANA.
Application led July 24,
To all whom it may concern:
Be it known that I, OSCAR F. MANN, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new .and useful Improvements in Buildingof the next course into place one at a time.V
In a nine inch Wall, for example, the'two rows of which it is formed are laid up seven courses at av time with the bricks running lengthwise of the wall, and every seven courses the wall is tied by a course of bricks placed transversely. Before this tie course is laid, the space between the inner and outer rows is supposed to be thoroughly flushed and filled with mortar, but in practice this space is not lled at all in many cases. This method of forming a wall is slow and expensive.v y
My invention contemplates the piling or laying up of all of the bricks between a tie course wlthout mortar and the introduction of the mortar at the top between the `inner .and outer rows of brick. A suicient quantity of mortar will be placed on top of the l loosely piled brick and then by pressure the mortar will be made to permeate every joint between the bricks below. In practice, this wall will preferably be formed between apair ofV vertical parallel retainers or forms, spaced the width of the-desired wall from each other. The forms serve the purpose of a uide for placing the `bricks in position ancgl itIv also serves as a restraint to hold the bricks and mortar when lpressure is applied at the top of the new wa l to force the mortar home.
In the proper construction of a wall as above described, it is essential that the bricks used in 1t be separated from eachJ other a uniform distance equal to the Width of the required mortar joint, and the object of this invention is articularly to provide means as a part of t e brick or other build- Specification of Letters Patent.
Patented Mar. 22, 190s. seria1 No. 327,548.
ing block to compel their separation just the required distance when they are piled up preliminary tothe addition of the mortar.
Referring to the accompanying drawings, `Figure 1, represents in front view, a number of bricks with my improvement, laid up for the formation of a wall, the View being before the mortar is applied. Fig. 2, is a perspective view of a molded brick embodyl ing my invention. Fig. 3, illustrates inperwhich it is cut into sections each of which sections constitutes a brick of regulation dimensions having my improvement, and Fig. 4 is a plan view of a two-course wall under construction, made with the blocks illustrated in Fig. 3.
usual size and shape and has the integral projecting portions 5 on its side. These projections extend out from the side of the brick a distance equal to the width of the mortar' joint which will be required for uniting the bricks when they are formed into a wall and it is obviously important that the projections have equal extensions so as to make the mortar joint of uniform thickness in all arts of lthe Wall and to bring the bricks 1nto alinement in straight rows as the wall progresses.A vWhile I have shown only two'of these extensions 5 on the same side of the brick and have placed these where they will be at the middle of their surface whenthe brick is broken into'half bricks, it is obvious that more than two extensions can be used and thatn their -positions may be changed without departing from the spirit of this invention. For example, four of these extensions or lugs might bev used on a side, one approximately at each corner of the brick, with the advantage that the four lugs would have greater tendency to prevent tipping of the brick than where only the two middle ones are used.
6 is an extension or lug at the end of the brick at the corner opposite the corner between the end and side havingthe extensions 5. This location is determined by the charge the brick from the mold. It is not \necessary to place these extensions or lu s more' than one Iside and end of the bric though they may be placed on both sides and ends without departing from the spirit of this invention.
spective a clay slab andthe manner in' y The brick 4 shown in Figs. 1 and 2 is of necessity of manufacture in order to dis-fr Fig. 3 shows the adaptation of my invention to a brick which 1s pressed out of themachine in slabs and then cut into brick sizes. Instead of lugs the extensions for spacing the'bricks are in the form of ribs 7 which serve the same purpose .as the lugs above described.
The bricks or blocks are laidl in two or more vertical rows-and the mortar or grout ing is then forced by pressure into the vertical space between the rows whence it will enter laterally into the horizontal spaces between the blocks and fill them. Temporar molds are employed, as previously describe to retain the grouting within the interstices between the blocks. The blocks will be laid in a .wall in the same manner as is shown in Fig. 1, and as the ribs 7 extend transversely of the blocks, or endwise to the direction of flow of grouting, they will not obstruct the movement of the latter I am aware of the patent to,y Scott, No. 721,751, having side and end Vedge-projections to space the blocks apart and also to retain the grouting within the wall, but my block is of a different form, without the side projections and requires the use of temporary molds to retain the grouting in the spaces between the blocks, and mortar joints show in the usual way in the nished wall.
l Having thus fully described my invention what I claim as new and wish to secure by Letters Patent of the United States, is-
1. A solid building block, having six plane surfaced sides, two of which have mortar spacing lugs, which serve to space one side and one end of the block from adjacent Ablocks and permit the unobstructed flow of mortar grout horizontally and vertically through three or more Vertical rows of blocks.
2. A wall composed of solid .building blocks each having a `plane surfaced end and side anda like side and end each provided with a spacing lug or lugs which serve to space apart sa1d side and end from the opy posing block or blocks, the blocks so arranged in the wall structure that the body portion of each block is spaced a art from the body portion of every other lock and the unobstructed flow of mortar grout is permitted both horizonally and vertically through three or more rows of blocks, substantially as shown and described.
In Witness whereof, I, have hereunto set my hand and seal at Indianapolis, Indiana,
this, 21st day ofJuly, A. D. one thousand nine hundred and six.
OSCAR F. MANN. [1.. s]
Witnesses: JOSEPH A.' MINTURN, F.' W. WOERNER.