|Publication number||US1699412 A|
|Publication date||15 Jan 1929|
|Filing date||7 Feb 1927|
|Priority date||7 Feb 1927|
|Publication number||US 1699412 A, US 1699412A, US-A-1699412, US1699412 A, US1699412A|
|Inventors||Rockhill Howell C, Thomson Samuel P|
|Original Assignee||Rockhill Howell C, Thomson Samuel P|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (2), Classifications (9)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Jan. 15, 1929. 1,699,412
5. P. THOMSON ET AL CORRUGATING MACHINERY FiledrFeb. 1927 I BY M ATTORNEY INVENTORS Fatented Jan. 15, 1929.
ROCKHILLtOF FORT HAYNE, INDIANA.
Application filed February This invention relatesto improvements in rorrueatmy inachmer' es eciall a llcable b to iron bars employed 1n the reini'orcementot concrete roads and other structures. The ob ject of the inurovement to provide a machine or" high capacity for corrug'ating iron bars that will becontinuous and self feeding in operation. Another object "is to. -so' construct the machine as to permit of adjustment whereby the angula-rity of the corrugations formed in the iron-bar may be varied more or less accordingly as adjustments are made, and another object is to provide thecorrugat ing members with replaceable parts at those portions thereof that are subjected verest stress and wear; 4 j I These objects are accomplished by theconstruction illustrated in the accompanying drawings, in which I Fig. 1 is a plan view of a machine embodyng the invention, there being included a bar n course of progressionthrough the" machine Fig. 2 is an elevation projected from Fig. 1, portions thereof being omitted; and
ig. 3 is a detail plan view of the adjusting to the semeans as applied to one oi the corrugating' members.
The characters appearing in the description" r ler to parts shown in the drawings and dosignated thereon by corresponding characters;
The invention is constituted of'a bench l having a flat top 2 supported on legs 8 and having transversely disposed channel beams 4 and 5, said beams being disposed in parallel relation with each otheiyone above the other. The legs 3 on each side of the bench are connected b corresoondin horizontal beams 6 that support a pair of bearings 7 and 8 res )ectively.
Tn supported relation with the beams 4 and are disposed a pair of spaced bearings 9 and 10 respectively each of which extends upwardly through the top ,2 of the bench, and has mounted therein a corresponding vertical shaft l112 provided at its lower end with a miter gear 13-14.. r
In the bearings 7 is journaledacountershaft 15 having fixed thereon-a pair of miter gears 1617 that have engagement respectively with the former miter gears on said vertical shafts, and being so disposed as to actuate said former miter gears in opposite directions when said countershattis rotated. Upon the outer end ot the countershait is fixed a gear 18 that has actuated relation with a pinion 19,
7, i927. serial at. ice-A56."
which pinion is fixed on a drive-shaft 20 ournaled in the bearings 8. The drive-shaftis provided with a fixed drive-wheel 21 to which is applied a belt (not shown) by whichit is actuated." The bearing 10'h as a foot 22 atgits lower end and also at a point spaced from ts upper end,"said'feet being provided with slots 23 through which bolts 2% entend for securing said'ieet to'the'correspondingbeams 4 and,5.' The slots are so disposed as to admit of adjustable" movement lengthwise in the corresponding J beams, there being provided an adjusting screw 25 in the upper part of the bench at one side thereof that bears against the corresponding foot 22am acts to prevent spreading movement of the hear ing 10 relative to the bearing 9.
Upon the upper end o't each vertical shaft 1112 is fi ed a corresponding rotor 2627, the one being the counterpart of the other and having the form of a star.' Each rotor has an annular series of male dies 28 that form respectively'the points of the star,'ancl also an annular series of female dies 29 that form the respective crotches of the star; "A series of radial ribs 30 on each rotor abut the respective dies 28-29-whereby saiddies are sustained.
The rotors are so positioned on their respectiveshaftsthatthe male dies of each rotor articulate with the corresponding female dies of the other rotor. t the front and back of'the benchis-provided acorrespondingpair of guide members 31 32 for the purpose hereinafter stated.
The dies are made of hardened metal and are removably'applied in their respective positions'on the corresponding rotor by any suitable means, such as is ordinarily resorted to, by which they are held rigidly in place.
In the operation of the invention an initially straight bar of iron 83 is introduced onto the top of the bench by passing it endwise between the guides 31, and the rotors are set in motion by the action of the drivingmechw nism. The bar is then manually progressed forwardly upon the top'of the bench and between the rotors to such extent as to become caught between one of the male dies 01. one rotor and the corresponding female die of the other, whereupon the bar is drawn, by the action of the rotors therebetween and pro gressed over the bench and between the guides 32 in a corrugated state, there being formed in the bar a succession of spaced bends 34: of alternate and opposite an ularit-y. The
in the bench structure; a pair of spaced bearings, one of which is adjustably movable so asto vary the space between said bearings; a Vertical shaft in each of said bearlngs; a
driving gear mechanism having actuating relation with said vertical shafts operable to 1'0 tate the shafts in opposite directions; a rotor fixed on the upper end of each shaft in a plane above the top of the bench, the one rotor being the counterpart of the other, and each having the form of a star; an annular series of removable male dies on eachrotor located thereon to form the star points thereof respectively; an annular series of removable female dies on each rotor located thereon forming the crotches thereof respectively, said rotors being so disposed that the star points of each rotor articulate correspondingly with the.
crotches of the other rotor as said rotors are revolved; and spaced guide members at each end of the bench operable to limit lateral swaying movement of said bars.
2. A machine for corrugating iron bars including a bench structure; a pair of spaced bearings including means for adjustably spacing said bearings; a vertically disposed shaft ineach of said bearings; a mechanism having actuating relation with said vertical shafts operable to rotate said shafts in opposite directions; a star shaped rotor fixed on the upper end of each shaft in a common plane with each other above the top of the bench, one rotor being the counterpart of the other, said rotors being so disposed that the points of each rotor articulate corresponding ly with the crotches of the other rotor as said rotors revolve; and spaced guide members operable to limit lateral swaying movement of said bars.
3. A machine for corrugating iron bars including a bench structure; a pair of spaced bearings including means for adjustably spacing said bearings; a vertically disposed shaft in each of said bearings; a mechanism having actuating relation with said vertical shaftsoperable to'rotate said shafts in oppositedirectio ns; and a star shaped rotor fixed on the upper end of each shaft in a common plane with each other above the topofthe bench, one rotor being the counterpart of theother, said rotors being so disposed that the points of each rotor articulate correspondingly with the crotches of the other rotor as said rotors revolve.
4. A machine for corrugating iron bars comprising two or more companion substantially star-shaped rotors, arranged in intermeshing pairs, renewable die members at the points and crotches respectively of said rotors, means for simultaneously rotating said pairs of rotors in unison and in opposite directions, and means for limiting the lateral swaying movement of said bars.
5; A. machine for corrugating iron bars comprising two or morepairs of intermeslr ing substantially star-shaped rotors, shafts supporting said rotors, means for adjusting said pairs" of rotors towards or from each other, means for simultaneously rotating the pairs of rotors and in opposite directions to each other, a, plurality of removable male and female dies at the points and crotches respectively of said rotors, and means for limiting the lateral swaying movement of said bars whilebeing corrugated. v p
In testimony whereof we affix our signatures.
SAMUEL P. THOMSON. HOW LL o. ROCKHILL.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3064694 *||3 May 1961||20 Nov 1962||Wire O Corp||Wire forming machine|
|US3184949 *||31 Oct 1962||25 May 1965||Ray Lab Inc||Automatic tube bender|
|U.S. Classification||72/196, 72/238, 140/105, 72/248, 72/250|
|International Classification||B21D13/04, B21D13/00|