US1861346A - Sanding machine - Google Patents

Description

R. ISEN HOUR SANDING MACHINE May 31, 1932.

Filed Aug. 5, 1930 INVENTOR l i ll faas .Eenh

ATTORNEY WlTNES V f I Patented May 31, 1932 UNITED STATES PATENT OFFICE SANDING MACHINE Application filed August 5, 1930. Serial No. 473,195.

My invention relates to brick making machines and particularly to a machine for applying sand to the face of a clay column of which the brick is formed.

It is a primary object of the present invention to provide an apparatus which will apply sand to the underside of the column of clay extruded from a side cutting brick machine in the manufacture of bricks.

A further object of the invention is to provide an apparatus of the kind described which may perform its function immediately before the column of clay enters the brick cutting machine as well as after it is extruded therefrom.

A further object of the invention is to provide a machine which is extremely simple in construction and easily installed to operate in con'unction with existing machinery.

urther important objects will become apparent during the course of the full description taken in conjunction with the accompanying drawings, in which like numerals refer to like parts throughout the same and in which Figure 1 is a side elevation of the invention;

Figure 2 is an end elevation thereof looking in the direction of the travel of the clay column;

Figure 3 is a top plan view; 7

Figure 4 is a detail vertical section on the line 44 of Figure 3;

Figure 5 is a vertical section on the line 55 of Figure 3;

One of the objects of the present invention is to apply sand to the under-face of the column of clay either before it enters or after it is extruded from a side cutting brick machine for the purpose of manufacturing colonial texture brick.

In the preferred embodiment of the invention, as illustrated on the enclosed drawings, the column of claybrick is shown just after it is extruded from a side cutting brick machine and as it is passing over a steel splicer plate 10. In passing over this plate which is highly polished the underside of the column of brick becomes dry and glazed. Accordingly in order that the sand which is subsequently applied to this underside will adhere thereto it is advisable to dampen or wet the same and in order to accomplish this an elongated vent 11 is provided through the steel splicer plate. This vent may be formed by slitting the plate transversely of the line of travel of the column of clay and then bending the forward edge of the slit downwardly to form a rearwardly directed lip 12 so that as the column of clay advances there will be no sharp edges to interfere with its travel. By forming the vent in this way there is also provided a neat recess for the reception of a perforated pipe 13 to which is attached a hose or other flexible water supplying means 14, as clearly shown in Figure 5. The perforations in the pipe 13 are forwardly and upwardly directed so as to throw a supply of water over the entire underface of the column of clay as it passes over the vent 11, thereby thoroughly dampening the same in readiness to rece ve the sand facing.

The column of clay passes from the splicer plate 10 onto the steel delivery plate 15 which plate is provided near its forward end with a vent 16 formed similarly to the vent 11 and also provided with a rearwardly directed lip 17 against which a sand delivery nozzle 18 is adapted to rest. The sandunder pressure is delivered to the nozzle 18 through the medium of motor driven blower 19.. The nozzle 18 is formed wide and flat so as to direct the sand against the entire undersurface of the column of clay as it'passes over the vent '16.

Sand may be delivered to the blower 19 in any convenient manner, but I, prefer to use the excess sand which has been previously applied to thetop of the column of clay. In order to collect this sand I provide a suitable scraping bar 20 which is shown as having for its contact edge a piece of stiff canvas belting 21 which is held in contact with the upper surface of the column of clay. This scraping bar is supported by means of uprights 22 and 23 secured to the delivery plate 15 on either side of the path of travel of the column of clay prior to its passage over the vent '16.

The scraping bar should be secured at an angle of about 45 degrees to the direction of travel of the column of clay so that the sand will be discharged to one side of the said column. Directly beneath the point at which the sand will be discharged an opening 24 is provided through the plate 15 through which the sand will fall. After the sand falls through the opening 24 it passes into spout 25 from which it is delivered to the blower 19 and thence to the nozzle 18. The sand could be supplied to the blower from a hopper or any other source without-materially altering the structure of the ma-, chine.

In the operation of the machine, the column of clay is extruded from a side cutting brick machine (not shown). This column of clay is made up of individual bricks in top and bottom contact thereby forming in effect an unbroken column. In the form in which the bricks issue from the cutting machine, the top and upper sides and ends have previously been provided with a coating ofsand to secure the proper face texture. However, the face of the underside of the bricks due to their passage over the polished surface of the machine become dry and glazed and unless they are finished in some manner this face of brick is unfit for exposure outwardly when the brick is used in building.

As the brick passes over the plate the underface thereof is dampened by means of contact with the spray of the pipe 18. After the bricks travel on and over the plate further onto the plate the blade scrapes the excess sand from the top thereof delivering said sand to the blower 19 through the spout 25. The sand from the blower 19 is then projected from the nozzle 18 onto the dampened underside of the brick thereby finishing this side and making it lit for exposure outwardly when used in building. As soon as the brick has received. the coating of sand and passes beyond the vent 16 it is removed from the table 15. Although a preferred embodiment of the invention has been shown and described, it is to be understood that various changes in the details of construction may be made without departing from the spirit of the invention as exemplified in the appended claims.

I claim V 1. In a device of'the character described, a supporting plate having vents formed therein, a column of brick adapted to pass over said plate and said vents, and means for supplying liquid spray through one of said vents and a sand blast through the other of said vents, to texture the underface of said column of brick.

2. In a device of the character described, a flat table like support adapted for the passage of a column of brick thereover and having a vent formed transversely thereof and in the path of said brick, a nozzle projected into said vent below the level of said plate, and means for supplying a blast of sand to said nozzle.

3. In a device of the character described, a plate for supporting a column of brick adapted to pass thereover, a scraping element carried by said plate and adapted to contact the upper face of said column of brick, to remove excess sand therefrom, a blower, means for delivering the sand from said scraper to said blower, said plate having a transversely extending vent intersecting the path of said brick, a delivery nozzle leading from said blower to deliver sand under pressure through said vent to apply the same to the undersurface of said brick column.

4. In a device of the character described, a pair of supporting plates adapted for the passage of a column of brick thereover and having vents formed therein intersecting the path of said brick, means for supplying moisture through the vent in one supporting plate to moisten the undersurface of the column of brick, and means for subsequently supplying sand under pressure through the vent in the other supporting plate, to texture said moistened underface, said sand supplying means including a blower having a discharge nozzle located in said last-mentioned vent below the level of said plate.

5. In a device of the character described, a support adapted for the reception of a moving column of brick, said support having a pair of spaced vents extending transversely of the path of travel of said brick column, means for projecting a liquid spray throu h the first of said vents encountered by tie moving column of brick to moisten the undersurface thereof, a scraping blade carried by said support and adapted to contact the upper face of said brick whereby to remove excess sand therefrom, a blower, means for delivering sand from said scraping blade to said blower, and means for projecting said sand from said blower through the other of said vents to the underface of said brick.

RUFUS ISENHOUR.

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