US2710608A

US2710608A - Masonry cutters

Info

Publication number: US2710608A
Application number: US222589A
Authority: US
Inventors: Russell C Huber
Original assignee: Individual
Current assignee: Individual
Priority date: 1951-04-24
Filing date: 1951-04-24
Publication date: 1955-06-14
Anticipated expiration: 1972-06-14

Description

June 14, 1955 R. c. HUBER 2,710,608

' MASONRY CUTTERS Filed April 24, 1951 25 3/ :2? 7 EuSse/Z C Huber l3 3 INVENTOR. 7

28 gg /g 46 H 37 /E 48 Sta This invention relates generally to cutting devices and relates more particularly to masonry cutters for cutting bricks, tile, and the like. I

It is an object of the present invention to provide a relatively light weight, yet effective masonry cutter that is convenient and easy to use and which is readily portable around a job.

Another object of the invention is to provide a device of this character wherein the movable blade operates smoothly, will not bind, and will readily be accornmo-' dated to uneven surfaces should such be encountered;

Still another object of the invention is to provide a device of this character which will provide a quick,

device of this character wherein the blades are securely held in position but which are readily removable;

Novelty is also to be found in certain structural features of the device. 7 p

A further object of the invention is to provide a device of this character that is simple in construction and operation, and that is relatively inexpensive to manufacture.

Other objects and advantages of the invention will appear from the following part of the specification.

Referring to the drawings, which are for illustrative purposes only, 7 p

Fig. l is a side elevation of a masonry cutter embodying the invention;

Fig. 2 is a plan view of the same; and

Fig. 3 is a sectional view taken on line 3-3 of Fig. 1.

Referring more particularly to the drawings, the device comprises a base, indicated generally at 10, said base in parallel relationship to each other in spaced relation- 60 ship to provide blade receiving slots 16 (Fig. 3) and having other sides 17 extending outwardly therefrom. The lower ends of said angle irons 14 are welded at 18 to the part 13 of the base and at the upper ends of the 2 angle irons 14 are connecting members 19 which are welded at 20 to the said ends of said angle irons so as to secure same together.

The slots 16 are sufficiently wide to receive end portions of

blades

23 and 24 therein, the remaining portion of lower blade 23 being received in the space between 70 upright parts or sides 25 of blade supporting angle irons 27, which extend between the guides 14.

' atent The parts 28 of said angle irons are horizontal and rest on the top 13 of the base, said parts 28 being welded at 29 at the outer free edges thereof to said top 13. The

sides 25 and the blade 23 are provided with aligned 5 openings for reception of a screw 30 which secures said blade 23 in position and prevents its accidental displacement. The upper horizontal edge of the blade 23 is sharpened at 31, the upper edge of the sharpened portion being in a slightly lower plane than the unsharpened ends 32 so that the sharpened edge 33 of the upper blade 24 will not strike it when the blades are brought together, the end portions of the blade 24 being adapted to engage the upper edges of the ends 32 of blade 23.

The end portions 35 of the blade 24 extend outwardly 15 beyond the parts 15 of the angle irons 14 and said end portions 35 are each provided with ahole 36 in which one end of a spring 37 is received, the other ends of the springs 37 being received in holes provided therefor (but not shown) in the part 13 of the base, adjacent the ends thereof.

The spaces 16 are suificiently wide to permit the blade 24 to freely slide therein but the parts 15 are sufliciently close together to prevent said blade 24 from getting out of alignment laterally with respect to the lower blade. In other words, the parts 15 keep the cutting edge 33 of the blade 24 in alignment with the cutting edge 31 of the lower blade 23.

Along the upper edge of the blade 24 is a reinforcing bar 40 which extends substantially the entire distance -The bar 40 is welded to the blade 24 at 41 and provides a striking part which is adapted to be struck by a hammer or the like to effect cutting of bricks, tile and the like placed between the cutting edges of the blades. The springs 37 urge the blades together and aid in keeping the upper blade in engagement with the upper surface of such brick, tile or the like placed between the blades. A

quick sharp blow on the bar 40 will eifect cutting of the A brick or tile support and mitre gauge is also provided and comprises a horizontal table member 45 having its" inner edge abutting against or adjacent to the lower blade 23 and just below the cutting edge thereof, as best shown in Fig. 3. Beneath the table is a vertically arranged supporting plate 46 having its upper edge welded, at- 47,

to the table 45. The support 46 is provided with open- 1 ings spaced apart longitudinally thereof and aligned with similar openings in the part 12 of the base 10 for reception of screws 48 which detachably secure the table to The top of the table 45 is provided with shallow grooves or

marks

50 and 51 which provide means the base.

.nfor guiding the operator in providing the desired angular position of brick or tile between the blades to get the desired angle for the cut. The marks 50 are normal to the blades and the marks 51 are at other angles thereto.

The upper blade 24 may be removed by removing Tthe table and removing the screw 30 and blade 23. Then there is enough space provided for tilting one end of the blade 24 upward far enough so that said end will come out of the slot 16 in which it is disposed. The other end is effected by the reversal of the above steps.

It is to be noted that the free lower edges of the sides 11 and 12 of the base 10 are very effective in gripping the surface on which the device is placed so as that slipping or sliding about of the device when in use is 'minimized.

between the blade guides, as best shown in Figs. 1 and 2.

is then readily removed. Replacement of the upper blade I claim:

1. A masonry cutter, comprising: an elongated channel member forming a base, the closed end of said chan nel member being at the top and forming the top of said base; vertical blade guide means at each end of said base, each guide means comprising a pair of angle iron members having sides arranged parallel with each other and spaced apart to provide a slot for reception of cutting blades, said angle irons being welded at the lower ends to the base part forming the top of said base; a connecting part at the top of each guide means, said part being welded to the top portions of the angle irons; lower blade supporting means comprising a pair of angle irons extending between the guide means and each having one side resting upon and welded to the top of the base, said angle irons having other sides extending upwardly and spaced apart substantially the width of a blade; a lower blade removably received between said upwardly extending sides, said blade having a sharpened cutting edge at the top thereof; said blade also having end portions extending slightly upwardly of the plane of the cutting edge; means for removably securing said blade between the upstanding sides of the supporting angle irons; an upper blade having end portions slidably received between the parallel sides of the angle irons comprising the guide means; a striking bar welded to the upper edge of said blade, the lower edge of' said blade having a sharpened cutting edge, said bar extending substantially the entire distance between the guide means with the ends thereof spaced slightly from the respective adjacent guide means; spring means adjacent each end of the upper blade continuously and yieldingly urging said blade downwardly toward the lower fixed blade; a mitre table having a substantially horizontal top, one edge of which is adapted to abut against one side of the lower blade somewhat below the cutting edge thereof, and a supporting plate having its upper edge welded to said top, said top having guide lines scored in the upper surface thereof; and means for releasably securing the mitre table to the base.

2 A masonry cutter, comprising; a channel member forming a base, the closed end of'said' member forming the top of said base; vertical blade guide means at each end of said base, each guide means comprising a pair of angle iron members having sides arranged parallel with each other and spaced apart to provide a slot for reception of a movable cutting blade, said angle irons being welded at the lower ends to the top of the base; a connecting part welded to the tops of the angle irons; lower fixed blade supporting means comprising a pair of angle ironswelded to the base and having sides arranged in vertical spaced relationship; a lower, fixed blade between said sides; means removably securing said lower'blade in position; an upper blade having end portions slidably received between the parallel sides of the angle irons comprising the guide means; a striking bar welded to the upper edge of said blade, said striking bar extending substantially the entire distance between the guide means, the ends of said bar being closely adjacent the respective guide means; springs adjacent the ends of the upper blade for yieldingly urging said blade so as to yieldingly urge said upper blade toward material placed between said blades when said material is being cut downwardly toward the lower blade; a mitre and material supporting table; and means for removably securing said table to the base.

3. A masonry cutter, comprising: an elongated channel member forming a base, the closed end of said channel member being at the top and forming the top of said base; vertical blade guide means at each end of said base, each guide means comprising a pair of angle iron members having sides arranged parallel with each other and spaced apart to provide a slot for reception of cutting blades, said angle irons being welded at the lower ends to the base part forming the top of said base; a connecting part at the top of each guide means, said part being welded to the top portions of the angle irons; lower blade supporting means comprising a pair of angle irons extending between the guide means and each having one side resting upon and welded to the top of the base, said angle irons having other sides extending upwardly and spaced apart substantially the width of a blade; a lower blade removably received between said upwardly extending sides, said, blade having a sharpened cutting edge at the top thereof, said blade also having end portions extending slightly upwardly of the plane of the cutting edge; means for removably securing said blade between the upstanding sides of the supporting angle irons; an upper blade having and portions slidably received between the parallel sides of the angle irons comprising the guide means; a striking bar welded to the upper edge of the upper blade, the lower edge of said blade having a sharpened cutting edge, said bar extending substantially the entire distance between the guide means, the ends of said bar being closely adjacent the respective guide means; and spring means adjacent each end of the upper blade for yieldingly urging said blade downwardly toward the lower fixed blade and adapted to yieldingly hold said upper blade against a piece of material placed between said blades.

4. A masonry cutter, comprising: a channel member forming a base, the closed end of said member forming the top of said base; vertical blade guide means at each end of said base, each guide means comprising a pair of angle iron members havingsides arranged parallel with each other end spaced apart to provide a slot for reception of a movable cutting blade, said angle irons being welded at the lower ends to the top of the base; a connecting part welded to the tops of the angle irons; lower fixed blade supporting means comprising a pair of angle irons welded to the base and having sides arranged in vertical, spaced relationship; a lower fixed blade between said sides; means removably securing said lower blade in position; an upper blade having end portions slidably received between the parallel sides of the angle irons comprising the guide means; a striking bar welded to the upper edge of the upper blade, said striking bar extending substantially the entire distance between the guide means, the ends. of said bar being closely adjacent the respective guide means; and spring means adjacent the ends of the upper blade for yieldingly urging saidblade downwardly toward the lower blade at all times.

5. A masonry cutter, comprising: a base; vertical blade guides secured to the base and having blade receiving slots therein; a lower blade fixed to the base; an upper blade slidably received in the slots of the guides; and a striking bar secured to the upper blade, said striking bar extending substantially the entire distance between the guides with the respective ends closely adjacent said guides for holding the said upper blade against longitudinal displacement, said striking bar being of such length as to permit removal of the upper blade when the latter is tilted so as to yieldingly press said upper blade onto material disposed between said blades.

6. In a masonry cutter: a base; vertical guides secured to the base and having blade receiving slots therein; a lower blade secured tothe base and having a cutting edge along the top thereof; an upper blade slidably received in the slots of the guides and having a cutting edge along the bottom thereof; and end portions on at least one of said blades to limit movement of said blades toward each other and prevent the cutting edges thereof from striking each other.

7. In a masonry cutter: a base; vertical guides secured to the base and having blade receiving slots therein; a lower blade secured to the base and having a cutting edge along the top thereof; an upper blade slidably received in the slots of the guides and having a cutting edge along the bottom thereof; a striking bar secured to the upper blade and providing. stop means for preventing longitudinal displacement of said upper blade; and spring means urging the upper blade toward the lower blade.

8. In a masonry cutter: a base; vertical guides secured to the base and having blade receiving slots therein, said guides being spaced apart a substantial distance to receive therebetween pieces of material to be cut; a lower blade secured to the base and having a cutting edge along the top thereof; an upper blade slidably received in the slots of the guides, said upper blade extending the entire distance between said guides with end portions extending into said slots, there being a cutting edge along the bottom of said upper blade; a striking bar secured to the upper blade, the ends of said bar being adjacent the respective guides to cooperate therewith in retaining said upper blade against longitudinal displacement; and spring means urging the upper blade toward the. lower blade.

9. A masonry cutter, comprising: a base; blade guides secured to the base and spaced apart, said guides extending vertically and having blade receiving slots therein; a lower blade fixed to the base; an upper blade slidably received in said slots; and a striking bar secured to the upper edge of the upper blade, said striking bar extending substantially the entire distance between the guides with the ends of said bar closely adjacent the respective guides so as to maintain said blade against undue longitudinal displacement.

References Cited in the file of this patent UNITED STATES PATENTS 749,937 Lanigan Jan. 19, 1904 812,973 Barr et a1 Feb. 20, 1906 2,152,193 Johanning Mar. 28, 1939 2,453,216 Graham et al Nov. 19, 1948 2,490,989 Williams Dec. 13, 1949 2,582,694 Gundlach Ian. 15, 1952 2,613,661 Huber Oct. 14, 1952 FOREIGN PATENTS 634,143 Germany Aug. 17, 1936