US943541A - Brick-cutting machine. - Google Patents

Description

W. R. HASSELBAGK. BRICK CUTTING MACHINE. APPLICATION FILED APR.7,1909.

W. R. HASSELBAOK. BRICK CUTTING MACHINE APPLICATION FILED APRHI, 1909.

PatentedDec. 14, 1909.

2 SHEETS-SHEET 2.

witmwoea WILLIAM It. I-IASSELBACK, OF FALLS CREEK, PENNSYLVANIA.

BRICK-CUTTING MACHINE.

Specification of Letters Patent.

Application filed April 7, 1909.

Patented Dec. 141:, 19-39.

Serial no. 488,418.

To all whom it may concern:

Be it known that I, VVILLIAM It. liassnnneon, a citizen of the United States, residing at Falls Creek, in the county of Clearfield and State of Pennsylvania, have invented certain new and useful Improvements in Brick-Cutting Machines, of which the following is specification.

This invention is an improved brick cutter by means of which bricks, blocks, tiles and the like of various odd shapes and sizes may be expeditiously and economically manufactured.

The object of the invention is to provide a simple and practical semi-automatic cutter of this character which is especially adapted for making arch bricks and on which a series of related bricks of dilferentshapes may be quickly and accurately made.

With the above and other objects in view, the invention consists in the combinations and arrangements of parts and in the de tails of construction hereinafter fully described and claimed, and illustrated in the accompanying drawings, in which,

Figure 1 is'a vertical transverse section through the machine, the plane of the section being indicated by the line 1-1 in Fig. 3; Fig. 2 is a vertical longitudinal section taken on the plane indicated by the line 22 in Fig. 1; Fig. 3 is a horizontal section taken on the plane indicated by the line 33 in Fig. 1; Fig. e is a detail section taken on the plane indicated by the line H in Fig. 1; Fig. is a detail bottom plan view of a portion of the table, showing the clutch for holding the revolving member, and, Fig. 6 is an enlarged sectional view through the clutch showing its parts in released position.

Referring more particularly to the drawings, 1 denotes a table or other support having a flat top formed with a circular recess 2 in which is revolubly mounted a similar shaped table member or platen 3 having its flat upper face flush with the top of the table. fiaid member 3 is preferably supported for rotation upon a metal ring 1 embedded in the bottom of the recess 2 concentric with the latter and also with a circular opening 5 in the table top. The table member 3 carries a vertically reciprocating cutter 6 preferably in the form of a wire adjustably stretched, as shown at 7, on the lower end of a slide 8 arranged for movement in an uprightframe 9. The latter consists preferably, of two pairs of spaced angle metal uprights 1O rising from the member 3 and having their upper ends connected by a top piece 11. The uprights 10 are disposed at opposite points on the memher 3 and on opposite sides of a vertical slit or opening 12 formed in said member for the reception of the cutting wire 6. The cutter carrying slide 8 is preferably composed of two T-shaped side bars 12 which are united by cross bars 13 and which project between the pairs of uprights 10 and slidably engage the inner faces of the same, as shown more clearly in Fig. 1. The slide 8 is raised to dispose the cutter above the table, by means of a coil spring 1a, the lower end of which is fixed to the frame 9, as shown in Fig. 1, and the upper end of which is attached to the short arm of an operating lever 15. no latter is pivoted intermediate its ends between bracket straps attached to and rising from one pair of the uprights 10, and its long arm is connected by a link 16 to the upper cross bar of the slide 8. Connected to the end of said long arm of the lever isa depending pull rod or handle 17 which hangs within convenient reach of the operator.

F or the purpose of locking the rotary table member 3 in any adjusted angular position, I preferably provide a clutch which consists of two oppositely disposed dogs 18 slidable in guides 19 upon the bottom of said member 3 and adapted to be projected into frictional engagement with the inner face of the ring 4:. Said friction clutch dogs are connected by toggle links 20 to a slidable sleeve 21 on a vertical guide pin 22 scr wed into the center of the member 3 and depending therefrom. The sleeve or head 21 is formed with an annular groove to receive the slotted inner end of a vertically swinging clutch operating lever 23, which latter is pivoted intermediate its ends on a bracket 24: depending from the table top 1. The free end of the lever projects outwardly from beneath the front edge of the table and within convenient reach of the operator.

For the purpose of indicating the adjustment of the cutting wire, a pointer is provided upon the rotary table member 3 to coact with a graduated scale sheet 26 arranged upon the stationary table 1, as shown in Fig. 3. The pointer or indicating finger is in the form of a triangular plate fixed to the front edge of the member 3 at one end of the slit 12. The scale sheet 26 is preferably in the form of a sheet or plate attached to the table 1 and suitably marked or graduated according to the shape of the bricks to be cut, it being understood that a diflerently graduated sheet is used for making the brick for each particular arch or other structure.

To properly position the bricks beneath the cutting wire, side and end gages 27 and 28 are employed, the former being carried by the rotary member 3 and the latter by the table 1. The side gage 27 is in the form of an upright plate pivoted at 29 on one end of an adjustable attaching arm 30, so that it can be swung upwardly and outwardly away from the brick against it. Said attaching arm is adjustable both longitudinally and angularly upon a. screw stud 31 rising from the member 3, and it is secured in an adj usted position by means of a clamping nut 52. The enl gage 28 is in the form of a plate fixed to two longitudinally slotted arms or shanks 33 slidable on screw studs 23son the table 1 and adapted to be clamped in adjusted position thereon by nuts In operation, the scale sheet 26 is secured in position on the table, the gages 27, 28 are then adjusted and after the green brick is placed in position against said gages, the pointer 25 is caused to aline with one of the graduation marks of the scale sheet and the handle 18 is pulled downwardly. This causes the slide 8 to move downwardly in the frame 9 and forces the cutting wire 6 through the brick. lVhen the handle 17 is released the spring l l raises the cutter car rying slide to its normal position and the table member 3 may then be adjusted to p0sition in the cutting wire for the next cut, if the brick is to be twice cut. When the rotary member 3 is adjusted after each operation of the cutter, the clutch device is preferably left in its released position shown in Fig. 6 so that said member may be easily turned, but when all of the bricks are to be cut at the same angle, the handle end of the lever 28' is depressed to cause its inner end to raise the clutch head 21 which latter causes the links to project the dogs 18 into engagement with the ring at and thereby lock the member 3 against movement.

YVhile the preferred embodiment of the invention has been shown and described in detail, it will be understood that changes in the form, proportion and arrangement of parts and in the details of construction may be resorted to within the spirit and scope of my invention.

Having thus described my invention,wl1at I claim is:

. 1. In a brick cutter, the combination of a table having a circular opening, a slotted member revolubly mounted therein and flush with the surface of the table, an upright guide frame rising from said member, a reciprocatory slide in said guide frame, a cutting wire on said slide and adapted to enter the slot in said member, means for operating said slide, a friction clutch for said member arranged beneath it and in cluding a slidable operating head having an annular groove, and a lever fulcrumed intermediate its ends beneath the table and having a slotted end engaged with the grooved head of the clutch for the purpose set forth.

2. In a brick cutter, the combination of a table having a circular opening, a slotted member revolubly mounted therein and flush with the surface of the table, an upright guide frame rising from said member, a reciprocatory slide in said guide frame, a cutting wire on the slide and adapted to enter the slot in said member, a hand lever upon the frame for depressing said slide, a spring for elevating said slide, ascale upon the table adjacent its opening, a pointer upon said member to co-act with said scale, a friction clutch ring upon the table beneath said member, friction clutch jaws to co-act with said ring and carried by the bottom of said member, a clutch head operatively connected to said jaws, and a clutch lever fulcrumed beneath the table and operatively connected to said head.

In combination, a table, a revolving member set therein, astationary ring embedded in the table for supporting said member, a pin concentric with said member and depending therefrom, clutch dogs slidable upon said member and adapted to frictionally engage said ring, a grooved clutch head slidable upon said pin, links connecting iid dogs and head, a clutch lever fulcrumed upon the table and having a slotted portion to engage the groove in said head, a movable cutter carried by said member, and means for operating said cutter.

In a brick cutter, the combination of a table, a revolving member therein, a cutter carried by said member, a friction clutch ring upon the table beneath said member, friction clutch avs to co-aet with said ring and carried by the bottom of said member, a clutch head operatively connected to said jaws, and a clutch lever fulcrumed beneath the table and operatively connected to said head.

In testimony whereof I afiiX my signature in presence of two witnesses.

XVILLIAM R. HASSELBACK.

lVitnesses J. F. REED, A. ABEL.

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