US2382306A - Band iron brake - Google Patents

Description

Aug. 14, 1945. GABLE 2,382,306

BAND mom BRAKE Filed Feb. 8, 1944 3 Sheets-Sheet 1 Inventor Aug. 14, 1945.

1.. H. GABL E BAND IRON BRAKE Filed Feb. 8, 1944 3 Sheets-Sheet 2 law/s gab/e Aug. 14, 1945.

BAND IRON BRAKE Filed Feb. 8, 1944 3 Sheets-Sheet 5 Inventor Z0103 h. gab/e B fizwaariw.

' 1.. H. GABLE 2,382,306

of angular cross section.

Patented 14, 1945.

UNITED STATES PATENT OFFICE 2382306 BAND IRON BRAKE Louis H. Gable, Seneca, Ill. Application February 8, 1944, Serial No. 521,593

. 3 Claims.

The present invention relates to new and useful improvements in band iron brakes, and has for one of its important objects to provide, in a manner as hereinafter set forth, a comparatively light, portable, manually operated device of this character which may be readily moved from place to place for use at the location where the work .may be, thus obviating the necessity of conveying said work to the machine, as is done atpresent.

Another important objectof the invention is to provide a. portable band iron brake of the aforementioned character which embodies unique adjusting means for different thicknesses of metal.

Other objects of the invention are to provide a portable, hand-operated band iron brake of g the character dscribed which will be comparatively simple in construction, strong, durable, highly efficient and reliable in operation, come pact and which may be manufactured at low cost.

All of the foregoing, and still further objects and advantages of the invention, willbecome apparent from a study of the following speciiication, taken in connection with the accompanying drawings, wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figural is .a view in front elevationofband iron brake constructed in accordance with the present invention.

Figure 2 is a topplan view of the device. 7 Figure 3 is a side elevational view.

Figure 4 is a vertical sectional view, taken substantially on the line 4-4 of Figure 1.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a pair of spaced, opposed vertical metallic plates l of suitable dimensions, said plates being of substantially the shape shown to advantage in Figure 3 of the drawings. Fixed on the lower portions of the plates Lare angl irons 2 which may be secured irr any suitable manner to a bench or other support for mounting the device thereon. Mounted between the plates I is a metallic bed 3 Mounted for vertical swinging movement on the upper front portions of the plates l is a metallic apron- 4. Fixed on the pivoted end of the apron 4 are pivot pins or trunnions 5 which are journaled in openings provided therefor in the plates I. When in inoperative position, as seen bed 3.

in Figure 4 of the drawings, the apron 4 is suspended from the trunnions 5 between the front portions of the plates l and rests against the depending flange portion 6 of the bed 3. Whenin this position, the upper end of the apron 4 is flush with the upper surface or face of the Fixed on the free end portion of the apron 4 and projecting therefrom is a, substantially U-shaped operating handle I. s

Slightly elongated openings 8 are provided in the upper rear portions of the plates I. The end portions of a shaft 9 of circular cross section are engaged in the openings 8. Fixed to and beneath the shaft 9 and extending forwardly and downwardly therefrom is a metallic head ill. The head l0 includes a beveled forward edge i l which is engageablewith the bed 3 or with the work thereon.

Angularly bent fiat metallic bars 12 have one end portion fixed on the shaft 9. and their other ends fixed on the head ill adjacent the beveled forward edge ll thereof. A shaft I 3 is journaled in openings provided therefor in the upper portions of the plates i, said shaft extending between the bars 12 and the head I0. Cams l4 are provided at spaced points on the shaft l3. The cams M are engageable with the head ill for pressing the edge H thereof downwardly on the work, or said cams are engageable beneath the bars l2 for swinging said head l0 upwardly to inoperative position, as suggested in dotted lines inFigure 4 of the drawings. An operating lever I5 is provided on one end of the shaftl3. i Inwardly extending, angular metallic brackets I 6 are mounted on the upper rear portions of the plates I. The inner end portions of the brackets 16 are apertured to slidably accommodate eye bolts I! through which the shaft 9 passes. Nuts l8 are threaded on the eye bolts l l on opposite sides of the brackets l6 for adjusting the shaft 9 in the elongated openings 8 and for securing said shaft in adjusted position. V It is thought that the operation of the device will be readily apparent from a consideration of the foregoing. 'Briefly. the lever I5 is swung forwardly and upwardly, as indicated by the arrow in Figure 3 of the drawings, for rotating the shaft l3 in a clockwise direction. In this manner the wardly over and beyond the upper end of the apron 4. The lever I is then swung downwardly for actuating the shaft [3 in the opposite direction, thereby engaging the cams is with the head III for pressing the beveled edge ii of said head firmly on the work. The apron Q is then swung forwardly and upwardly for bending the band iron to the desired angle, the upper or pivoted end it of said apron abutting the work. The apron l is operated through the medium of the substantially U-shaped handle I. when the work has been bent to the desired angle, the apron 4 is swung downwardly to inoperative position and the head I0 is again raised through the medium of the cams it, after which the work may be removed from the machine. By adjusting the eye bolts -|l on the brackets 18 through the medium of the nuts l8, the head Hi may be readily shifted or adjusted to accommodate band iron of different thicknesses, the shaft 9 moving in the elongated openings 8.

It is believed that the many advantages of a band iron brake constructed in accordance with the present invention will be readily understood, and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall' within the scope of theinvention as claimed.

What is claimed is: 1

1. A band iron brake comprising a pair of spaced, parallel vertical plates, a work-receivin bed mounted horizontally between said plates below the tops'of the latter, said bed including a depending flange, means mounted on and disposed between the plates above the bed for clamping the work on the bed. and a manually operable apron mounted for'swinging movement between the plates, said apron including a plate having trunnions on opposite sides of one end thereof.

said trunnions being journaled in the first-named plates, said one end of said second-named plate being flush with the bed when the apron is in inoperative position, said apron, when in inoperative position, being suspended from the trunnions between the first-named plates in engagement.

with the depending bed flange, and a substantially U-shaped operating handle having its ends fixed on opposite side edges of the second-named plate.

2. A band iron brake comprising a pair of spaced, opposed vertical plates, a bed mounted between said'plates, said bed for supporting a piece of work, a shaft rotatably and shiftably -mounted on said plates, a head fixed at o ne edge on said shaft and engageable at its opposite edge with the work for clamping same on the bed, a pair of angle brackets mounted on the plates, eye bolts mounted on theshaft and slidably engaged in said brackets, nuts threaded on the eye bolts and engaged with the brackets for shifting the' a shaft on the plates and adjusting the head, and means for swinging the head toward or away from the work, said means including angularly bent metallic bars fixed to the shaft and to the head, a shaft journaled in the plates and extending between said bars and the head, an operating lever on the second-named shaft, and cams on said second-named'shaft engageable with the bars for swinging'the head away from the work or engageable with the head for swinging'same toward the work.

3. A portable band iron brake of the character described comprising a pair of spaced, opposed vertical plates, a bed mounted horizontally b tween said plates and including a dependin flange, said bed for receiving and supporting a piece of work, the plates having elongated openings' therein, a shaft rotatably and shiftably mounted in the openings, a head fixed to and beneath said shaft and engageable with the work for clampin same in position on the bed, a pair of brackets mounted on the plates, eye bolts -mounted on the shaft and extending slidably through the brackets, nuts threadedly mounted on the eye bolts on opposite sides of the brackets for shifting the shaft inthe openings and for adjusting the head relative to the bed, angular bars having one end portion fixed to the shaft and their other ends fixed to the head, a second shaft journaled'in the plates and extending between the bars and the head, an operating lever on the second-named shaft, cams on said second-named shaft engageable with the bars or the head for swinging said head away from or toward the work, and a manually operable apron mounted for vertical swinging movement between the plates, said apron comprising a plate, trunnions on one end of the apronplate journaled in the first-named plates, said one end of the apron plate being flush with the bed when the apron is in inoperative position, said one end of said apron plate being engageable with the work for bending said work, said apron plate, when in inoperative position, beingsuspended from said trunnions between the first-named plates and abutting the flange, and a substantially U-shaped operating handle fixed to the apron plate;

, LOUIS H. GABLE.

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