US1029012A - Cornice-brake. - Google Patents

Description

H. HIGGIN. GORNIOE BRAKE.

APPLICATION FILED OUT. 6, 1911.

1,029,012. I PatentedJune 11,1912.

4 l v W llIlY/I/I/IIII/l/ UNITED sTArEs new OFFICE.

HENRY HIGGIN, or NEWPORT, KENTUCKY, Assicruonor ONE-HALF TO THE I-IIGGIN MANUFACTURING COMPANY, VIRGINIA.

OF NEWPORT, KENTUCKY, A CORPORATION OF WEST CORNICE-BRAKE.

Specification of Letters Patent.

Patented June 11, 1912.

Application filed October 6, 1911. Serial N0.- 653,235.

To all whom it may concern:

Be it known that I, HENRY HIGGIN, a citizen of the United States,.and a resident of the city of Newport, in the county of Campbell 'and State of Kentucky, have in- 'when bent more than half round to be readily and easily removed from the formerand the machine without the necessity of disconnecting the former or other parts of the mechanism.

The invention consists of that certain novel construction and arrangement to be hereinafter particularly pointed out and claimed, whereby hollow trunnions are provided for the bending leaf or apron with openings of sufficient diameter to permit the withdrawal of the bent sheet metal from the ends of the former, no matter what shape of bend may have been given the sheet.

In the drawing, Figure 1 is a front elevation of my improved machine. Fig. 2 is a side elevation of the same. Fig. 3 is a central, vertical cross section of the bending mechanism. Fig. 4 is a detail longitudinalsection showing one of the trunnions of the bending apron. Fig. 5 is a perspective view of a portion of the bent sheet metal.

The end standards I for supporting the machine are represented. by 1, 1, and the table supported by the standards by 2. The front edge 3 of this table forms the fixed clamping surface for the sheet metal, and the other clamping jaw is represented by 4.. The front edge of this clamping member is provided with the former 5, bolted thereto, andin the present instance this former is circular in cross section, around'which the sheet metal may be bent into a three-quarters round. I

Formers are of various shapes and are furnished for the brake to present the desired surface over which the metal may be bent.

The clamping jaw 4 is provided with the rearwardly and downwardly extending arms 6, 6, by means of. which the clamping jaw is pivoted at 7 to the upper portion of the side standards, and this clamping member is provided'with outwardly projecting pins 8, 8, which engage in diagonal slots 9, 9, inthe plates 10, 10, secured to the looking levers 11, 11, which are pivotally mounted on studs 12, 12, on the standard. By rocking the levers 11, 11 in either direction, the clamping member 4 will be raised or depressed at its clamping end, swinging on the pivots 7 7. This move,- ment of the clamping jaw is provided to allow for the insertion of the sheet metal plate to be bent.

Pivotally mounted by hollow trunnions 13, 13, in the side standards, is the bending leaf or apron 14. This leaf has secured along its upper edge the former '15, to cooperate with the former 5 in bending the sheet metal. The trunnions 13 of the bending apron are cored out at 16 to provide a space of ample diameter to allow for the endwise passage of the bent sheet metal from the former 5, so that, notwithstanding the metal may be bent three-quarters round, the sheet metal can be readily slipped off of the former through this opening without unbolting, or otherwise disconnecting any of the parts. The bending apron 14 is provided with the hand levers 17 17 for operating the same in the usual way, and the surface of the table and of the clamping jaw 4 to the rear of the clamping surface is cut away at 18 to allow for any bent portion 19 of the sheet metal which may have been previously formed.

The operation of the brake is exceedingly simple. The clamping member 4 is raised slightly by rocking the arms 11, 11, rearwardly, and the sheet to be bent placed between the clamping jaws, the formers to cooperate for the desired curve to be given the metal having been previously bolted to the clamping member 4 and the bending apron 14. The levers 11, 11, are then rocked to clamp the sheet tightly between the clamping jaws, and the bending apron is then raised by the handle 17 into the position shown in dotted lines in Fig. 3, thus bending the metal around the former 5. The apron is then returned to its normal position, the clamping jaws released by the levers 11, and the bent sheet metal removedthrough the hollow space 16 in the trunnions of the apron.

Having thus described my invention, What I claim as new and desire to secure by Letters Patent, is

1. In a cornice brake, the combination with the clamping jaws, of a bending apron to act upon the sheet metal, with trunnions for the apron, having the hollow spaces therein opposite the forward end of the clamping jaws, whereby the bent sheet metal may be removed endwise from the machine.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of 2. In a cornice brake, the combination with the clamping jaws and a formersecured to one of-said jaws, of a bending apron to act upon the sheet metal, with hollow trunnions for the apron, having the hollow spaces therein opposite the ends of the former, whereby the bent sheet metal may be removed endwise therefrom.

HENRY HIGGIN.

Attest':

H. A. FABER, WALTER A. FABER.

Patents,

Washington, D. C.

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