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Publication numberUS1019073 A
Publication typeGrant
Publication dateMar 5, 1912
Filing dateAug 4, 1909
Priority dateAug 4, 1909
Publication numberUS 1019073 A, US 1019073A, US-A-1019073, US1019073 A, US1019073A
InventorsJohn Nazel
Original AssigneeJohn Nazel
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1019073 A
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Description  (OCR text may contain errors)

' Patented Mar. 5, 1912.







1,019,073. Patents d Mar.5, 1912.

2 sanms snnm 2.




Specification of Letters Patent.

Patented Mar. 5, 1912.

Application filed August 4, 1909. Serial No. 511,094.

To all whom it may concern:

Be it known that I, JOHN NAZEL, a citi zen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain Improvements in Forming-Machines, of which the following is a specification.

This invention is a adapted for shaping bars and like articles. Its leading objects are to provide improved means whereby shapes having various curvatures can be produced by simple adjustments and operations, with the least practicable expenditure of power.

In the preferred construction, a revoluble form is combined with a bed or anvil having separately movable elements adjusted and supported by the form and a recipro-- cating head or ram having several elements adjustable to the form of the bed or anvil and cooperating therewith for the production of the desired shape.

In the drawings, Figure 1 is a front elevation of a machine embodying my improvements with a part broken away to show the interior construction; Fig. 2 is a sectional elevation taken on the line 2-2 of Fig. 1; Fig. 3 is a sectional elevation taken on the line 33 of Fig. 1; and Fig. 4 is a sectional elevation taken on the line 4-4 of Fig.1.

The machine represented in the drawings comprises the housings 1 having journaled therein the shaft 2 on which is fixed the form 3 comprising sets of graduated cams 3 3 and 3, the general contour produced by these cams being a surface of revolution formed by revolving a curve of gradually varying diameter. That is to say, the form is a cam tapering from its median portion toward its ends, whose transverse sections are spirals and whose contour lines lying in planes passing through its axis of revolution gradually vary from the curve 3 -3"3 of short radius to the curve 333' of larger radius. The shaft 2, with the form 3 thereon, is revolved and held with the desired curve uppermost by a worm wheel 4 fixed on a shaft end and in engagement with this wheel a worm 5 on a revolving shaft 6.

A bed plate or table 7 is supported by and extends between the housings 1 above the form 3. Connected with the part 7 is a bed or anvil 8 comprising the elements 8 forming machine which are separately movable in the way '7' of the table. vided with the enlarged tabs 8 which limit their downward movements and coact to provide the variable bearing surface or head of the anvil, this surface or contour being similar to the contour of the form 3 upon which the elements 8 rest.

A head or ram is formed by a cross beam 9, having end bearings 9 which move in vertical ways 1 of the housings, and the elements 10 movable vertically in the way 9 of the beam, the elements having theenlargements 10 and 10 at their opposite ends for limiting their vertical movements, and in the case of the parts 10 for providing the desired bearing surface. The bearings 9 are movable relatively to the beam 9 and have the rods 9 passing t-herethrough for drawing them up and clamping the members 10 in their desired position, which is obtained by dropping them when loose upon the properly arranged members 8. These rods 9 are suitably provided with heads 9 for engaging one of the bearings and with The elements 8 are pro-' the screw threaded ends 9* for engaging the pinions 9 which are revolved to loosen and tighten the rods by means of a pinion 9 journaled upon one of the bearings. The cross beam is provided with the journals 9 which are engaged by rods 11 journaled upon the cranks 12 and 12 of a crank shaft 12, the latter being journaled in the bearings 1 and 'driven in any suitable manner, as by a pulley 12.

In the operation of the machine, when the form 3 has been revolved by the worm 5 and wheel 4 to the position required for giving the bed or anvil 8 the configuration desired in the bar or other article to be shaped, the head is lowered and the elements 10, being loose in the cross beam, are adjusted so that their lower ends take the form of the beds contour, in which posia plurality of elements Which are relatively adjustable by said master form and adapted for bending articles to shapes determined by the setting of the master form.

2. In a machine of the character described, a master form revoluble for adjustment and means for retaining it in adjusted position,

in combination With reciprocating element-s adjusted relatively by said master form and thereby adapted for bending articles to shapes determined by the setting of the master form.

3. In a machine of the character described, a revoluble form, a set of longitudinally movable elements adjusted and supported by said form, a second set of longitudinally I a revoluble form having gradually varying spiral cross sectional contour curves, in combinatlon With guiding means, and separately movable elements controlled by said guiding means and relatively adjusted by means of said form.

6. 111 a machine of the character described, a housing, a form journaled therein, guiding means supported by said housing, and separately movable elements controlled by said guiding means and adjusted relatively by said form.

7. In a machine of the character described, housing mechanism, a form journaled in said mechanism, guiding and supporting means fixed to said mechanism, elements held by and movable vertically in said means by said form, a reciprocating member guided by said mechanism, and elements held by and movable vertically in said member.

8. In a machine of the character described, a housing, a form j ournaled in said housing a bed piece fixed to said housing, elements separately movable in said bed piece by said form, a reciprocating head piece guided by said housing, and elements separately movable in said head piece by said elements first named.

In Witness whereof I have hereunto set my hand this 3rd day of August, 1909, in the presence of the subscribing Witnesses.




Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2746510 *Jun 2, 1953May 22, 1956Pedersen Charles WForming dies
US3474657 *Apr 26, 1966Oct 28, 1969Spiegel Raymond JLaminated press brake die
US4116038 *Mar 21, 1977Sep 26, 1978Knud Vilhelm BerthouApparatus for shaping sheet material
US5187969 *Jun 12, 1990Feb 23, 1993Morita And Company Co. Ltd.Leaf spring cambering method and apparatus
US6053026 *Oct 7, 1998Apr 25, 2000Northrop Grumman CorporationBlock-set form die assembly
EP2641668A1 *Mar 20, 2013Sep 25, 2013Trumpf Maschinen Austria GmbH & CO. KG.Sheet metal bending machine
U.S. Classification72/413
Cooperative ClassificationB21D37/02