US2184894A

US2184894A - Tile cutting machine

Info

Publication number: US2184894A
Application number: US224805A
Authority: US
Inventors: Louis D Mariutto
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-08-13
Filing date: 1938-08-13
Publication date: 1939-12-26
Anticipated expiration: 1956-12-26

Description

Dec. 26, 1939. L. D. MARIUTTO TILE CUTTING MACHINE Filed Aug. 13, 1938 2 Sheets-Sheet 1 In venior lufi lfarazz jo A itorneys Dec. 26, 1939.

L. D. MARIUTTO v TILE CUTTING MACHINE Filed Aug. 13, 1958 2 Sheets-Sheet 2 In ventor ,fimm

A iiorneys Patented Dec. 26, 1939 NITED YATES tries 2 Claims.

The invention appertains to new and useful improvements in cutting apparatus and more particularly to a machine for cutting tile.

The principal object of the present invention 5 is to provide a machine which can be readily converted for cutting either asphalt, quarry, rubher or other composition tiles. 7

Another important object of the invention is to provide a machine of the character stated wherein a uniform pressure can be exerted on the cutter bar during the cutting operation.

Still another important object of the invention is to provide a tile cutting machine wherein the cutting operation can be accomplished by one hand of the operator.

These and various other important objects and advantages of the invention will become apparent to th reader of the following specification.

In the drawings:--

Figure 1 represents a side elevational View with a portion broken away.

Figure 2 is a top plan view.

Figure 3 is a transverse sectional view.

Figure 4 is a vertical sectional View onthe line i-tof Figure 1.

Figure 5 is a fragmentary detailed sectional view showing a modified form of cutter.

Figure 6 is a fragmentary detailed sectional View of still another form of cutter.

Figure '7 is a perspective view of the adjustable straight edge.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 represents the table having the permanent or fixed straight edge 5 along one edge portion thereof. Parallel to the straight edge 6, the table 5 is formed with a slot 1 for receiving the bolt 8 which extends downwardly through the slot 9 of the adjustable straight edge I and through the slot 1, below which the same is equipped with a nut I I. One end of the straight edge It! is cut off as at IE to form a ninety degree angle.

Numeral I3 represents the base plate upon which are the runners I4 for supporting the aforesaid table and as is clearly shown in Figure 1, the cutter bar supporting and tensioning means is represented by a pair of assemblies generally referred to by numeral I5. Each of these assemblies 15 consists of a vertically extending barrel I6 rising from the corresponding end of the base plate I3 and formed with a pair of slots Ii at diametrically opposite sides thereof.

These slots extending vertically and have the cutter bar I8 extending therethrough. The cutter bar I8 extends entirely across the machine With its end portions disposed through the assemblies I5 and is provided with a reduced portion it at one end and the reduced intermediate portion 2&3 which portions are cooperative with the levers 2i and 22, respectively, each mounted on the barrel Iii of one of the assemblies I5. These levers 2i and 22 are of substantially bellcrankhape mounted on pivot pins 23 and it may be desirable that the lever 22 has the handle 24.

Each of the barrels I6 is provided with a cap 25 downwardly through which is feedable the adjusting screw 26 having the knurled head 21. The lower end of this screw 21 has the plate- Ilka portion 28 ridable against the spring 29 which in turn bears'against the ball 30 which is in riding relation with the cutter bar I8, the

cutter bar It resting on the plate 3| which is supported by the spring 32, the spring 32 being interposed between the intermediate runner 33 and the said plate 3|.

As is shown in Figure 2, the intermediate portion of the cutter bar I8 is formed with an opening 34 in which is mounted the disk-type cutter 35, a bolt 36 extending through the bar for mounting the cutter and also extending beyond one side portion thereof to connect the link 31 with the bar I8. This link extends to pivotally connect as at 38 to the intermediate portion of the handlever 39 and this hand lever is, in turn, connected at its lower end as at 40 pivotally to the base frame.

Obviously, by pressing downwardly on the levers 2 I, 22 the foot portions of these levers can be urged against the bar I8 so as to depress the bar and hold the same against the tension of the spring 32, thus firmly holding the cutter bar downwardly so that the cutting element 35 will be in a position to cut through the tile placed on the table 5. Obviously the cutter bar is moved by the hand lever 39 and when the cutter bar I8 moves to the position where the reduced portion I9 and the reduced portion Zll'have approached the levers 2i and 22, the cutter bar will be released so that the cutter element will become removed from the material being out.

A modified form of cutter is shown in Figure 8 and is especially adapted for cutting rubber tile, the same consisting of the block structure 4i secured as at 42 in the opening 34 of the cutter bar I8.-

. The block M is slotted to receive the plate 43 preferably on an angle of approximately ninety degrees with respect to the cutter bar I8.

It will be observed in Figures 1, 3 and 4 that the table 5 has a slightly convexed top surface. In other words, the top surface is curved transversely and the purpose for this is that when the tile has been cut or scored, downward pressure on the ends, that is, on opposite sides of the scored line will result in the breaking of the tile directly on the platform or table 5.

A slightly modified form of cutter or scorer is shown in Figure 9 and this consists of the block 44 having the recess 45 therein for receiving the pointed pin 46 which is held in place by the set screw 41. The block 48 is provided with the head portion Q9 for rest upon the cutter bar l8 and a cross pin 50 holds the block in position with respect to the bar 18. This type is especially adapted for scoring quarry tile.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the claimed as new is:

invention, what is 2. A tile cutting machine comprising a table,

a cutter bar for travel over the table, means for operating the bar, and tensioning means for the bar, said tensioning means consisting of a pair of assemblies one at each end of the machine,

each of the said tensioning assemblies including i a spring-pressed ball for riding engagement with the cutter bar, and retaining means for retaining the cutter bar in Work-engaged position, and release means automatically releasing the retaining means at a predetermined extent of travel 2 of the cutter bar.

LOUIS D. MARIU'I'IO.