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Publication numberUS1244985 A
Publication typeGrant
Publication dateOct 30, 1917
Filing dateDec 7, 1916
Priority dateDec 7, 1916
Publication numberUS 1244985 A, US 1244985A, US-A-1244985, US1244985 A, US1244985A
InventorsAbraham Kipniss, Max Paul Neumann
Original AssigneeBenjamin Markowitz
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Machine for making metal binding for suitcases.
US 1244985 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)







APPLICATION man DEC. 7. 191s.

L Patented ont. 30,1917.




I. Patented 9ct. 30,1917.


ran STATES rarnnr onirica.. g



Speccation of Letters Patent.

Patented Oct. 30, 1917.

Application :tiled December 7, 1916. Serial No. 135,628.

To all whom z' may concern.'

Beit known that we, ABRAHAM KrPNrss, a citizen of the United States, and a resident of the city of New York, in the county of Kings and State of New York, yand MAX PAUL NEUMANN, a citizen. of the United States, `and akresident of the city of New York, in the county of Queens and State of New York, have invented a certain new and receptacles.

The object is to provide automatic mechanism adapted to move sheet metal rapidly through the rvmachine and simultaneouslyy bend the metalto the desired form.

rlhe invention consists of ayseries of pairs offeed rollers which are arranged to impart forward movement to a strip of sheet metal. Several of said pairs of feed rollers at the feed end of the machine are adapted 'to bend the edges of the strip back nearly upon itself. Other pairs of said feed rollers at the `middle of the machine arey arranged to force one of said bent edges against a spirally shaped guide and the edge of a straight guide bar, which serves to bend said edge so that it has the relation to the II--II of Fig. 1.

- Fig. 3 is a section on the line III-III of Fig. 1. n

Fig. e is a transverse sectlon on the line IIL-IV of Fig. 3, and showing the passage of a strip of ksheet metal between `a pair of feed rollers adapted for bending the edge of the strip to obtuse angles therefrom.

`Figxb shows 'thefpassage of said strip between-a pair Vof rollersfadapted forjbending the edges'to right angles from' the strip.v

Fig. r6 shows the passage of said strip between a pair of rollers adapted for bend-y ing the. edges to acute angles from the strip.

Fig. 7 shows the passage kof said strip between a pair of feed rollers adapted for bending the edges so that they stand parallel with the body of the strip.

Fig. S isa horizontal section, approximately on the line VIII-VIII of Fig.'2.

F ig.r9 is a transverse section on-the 'line IX-IX of F igs'. 2 and 8. l

Fig. 1,0 isa perspective view of the spi- Y rally shaped guide.

Fig. 11 is a transverse section on the line XI-XI of Figs. 1 and 2.

Fig. 12 is a perspective view of the strip after it is bent by passage along the spirally shaped guide.

Fig. -13 is a detail view showing the stripV further bent when it has been removed from the machine and applied as metal binding to a suit case. l n

Journaled in the frame l of the machine, is a driving `shaft 2, to which is secured a gear wheel 3. Gear wheel 3 yis in mesh with a gear wheel 4, secured to a shaft 5, to which a roller 6 is secured. In mesh with gear wheel i isa gea-r wheel 7, secured to a shaft 8, to which a roller 9 is secured.

Also in mesh with gear wheel 4 is a gear' wheel 10, which is journaled on a fixed shaft 11. In mesh with gear wheel 10 is a gear wheel 12, secured to a shaft 13, to which a roller 14 is secured. Gear wheel-12 is in mesh with a gear wheel 15, secured to a shaft 16, to which a roller 17 is secured.

In mesh with a gear wheel 3, is agear wheel 18, secured to a shaft 19, to which a roller 20 is secured. Gear wheel 18 is in mesh with a gear wheel 21, secured to a shaft 22 to which a roller 23 is secured. Also a gear 'wheel 29, secured to a shaft 30, to`

whichy a roller 31 is secured.

It will be seen, that by means of the gear-l ing described, rotation of the driving shaft 2 causes rotation of the pair of rollers le, `and 17, 'pair' 6 and 9, pair20 and 23, and

pair 2S and 3l. The upper roller of each pair is forced down upon the lower roller by ineans of springs which bear against sliding,` boxes 83 in which the shafts of the upper rollers are journaled.

A strip of sheet inetal 3l may be placed upon a horizontal support 35, and passed forward between lateral guides 36 and kloetween the upper and louter rollers of each of the series of pairs, wherebyy forward nieveinent is iinpai'fed to the strip. The rollers are shaped so that as tliestrip isniored forward between there, the edges of the strip are bent back to f rui the folds a.

Thegiiist pair of rollers 14e and 17 is pro videduith .cooperating inclined surfaces 3i and 58, adapted for bending the edges of the strip to obtuse angles froirr the strip. rlhe second pair of rollers 6 and 9 is prorided with cooperating right angular surfaces 89 `and Ll-O adapted for fui-ther bending the edgesof the strip to right angles therefrom. The third pair of rollers 2O and is adapted for further bending the edges toacute angles from the strip, this being accomplished by ineans of inwardly inclined surfacesl il-l formed ou the upper roller i3. The fourth pair of rollers is adapted for further bending the edges so that they stand parallel With the strip, tl.eieb tY forming the folds a.. This is accomplished by means of cylindrical surfaces formed on the upper roller Si, the folds c being] forced between guiding1 shoulders #i3 and #lil formed on said pair of rollers.

guide lo is placed above the support so that a passage is formed having a height approiiiniately equal to the thickness of the strip 34s that is passed to the feed rollers.v rEhe strip having the edges bent inV the manner described and moved forward. by ineens of the .feed rollers, passes on to a horizontal supporting bar gfaiidy one of the folds; a and a portion of the strip travels against espirallj,T .shaped 2guido 4S. The portion of the strip noty traveling against spiral guide 48, passes between the support el? and an upper bar 12:9, a passage 50 being left, through which the strip iiiaj,7 pass. rlhe upper bar 49 is provided with a guide 5l through which the other fold c; may pass; and one side of the bar is shaped so that its surface 52 extends at an angle of about 5 from the support e?.

. The spiral guide 48 is provided at one end with a surface 7L which entends horizontally beneath one edge ci .and a portion of the stripy as it passes frein. between the shaping` feed rollers. The uide i8 chauffes Oradit` ally in spiral forni, so that atvthe point c' it is inclined to an angle of about sie?, at j tastenfls-rerticah and at 1 it is inclined t0 an of about ou, the side kof the vverticeal oppositeto` that in `which rsurfece l isiiitlliicd-l Surface ft iemeliued ui the saine direction as surface 52 and a narrowv space is left between the tu'o surfaces.

Located short distances apart throughout the length of support el?, are rollers 5% Which serve to support the strip slightliT above the support 47. Each roller'is secured to a shaft journaled in bearings 5G, which are moved upward by iiieans, of springs 57. Secured to each shaft 'is a gear Wheel 5S in niesh With a gear Ywheel 59 foi-ming part of a'sliaft GG which is jouinaled in bearings Gl. Attached toeach shaft 60 is a Wheel 62, the periphery of which is provided with a rougliened surface 63, which bearsupon the upper side ofy a stp Sil that `niay be passing between it and, a roller 5ft beneath.

Secured to each shaft 60 is a chain Wheel 6l, over which rides the upper run of an` endless chainllo which is driven by'nieans of a chain Wheel 66, secured to the driving shaft 2. il series yof idle pulleys 67 serre to holdthey chain in engagement .With the teeth of chain -wheels Ge. @neef the pulleys R37 is inounted on slide 68,. which is E iree to incre in guides (39 and adjusted by ineans ofa screw "50) so that slack inthe chain may be taken up when necessari7 to secure engagement of the chain With'k the chain Wheels Ciel-.f

lt 'will be evident that rotation of the driving;` shaft, Q in theV direction indicated by tlie,aii'oiv, will cause rotation of the rollers, and theseries ofpairs shapingl feed or rollers and G2 in a, direction to cause continued forward noreinent of the strip 31% ybetween the bars e? and 49.. During thisY forward increment of strip 34, the fold a and part of the strip bearing; against the:

guide Si and traveling insuccession along; thesurfaces 7i5 i, j and it, are bent from the position shorfi in 9 to the position shown liii ll. This bending of Vthe stripy during its forward travel is effected by the. action of bars i? and 49 yin holdingl vthe other part of the strip in place, whilefthe spiral lguide constantly forces they part of thestrip bearing thereon against the sharp angular edge formed by they junction of inclined surface 52. with the louer side of the bar i9, thereby eifectine a firm; fold of the strip in line with the edge of the; bar, andv causing said part of the strip bearing against the spiralto he forced against the inclined surface 52 of the bar e9. ltwill be noticed that as the surfaces fi, t', y' and of thespiral arefall inclinedtouard the sharp angular edge of the bar 49, they act to uniforroly` force the strip against said edge; so that during' successive niort-:ments ofaiijr one portion ofthe strip alongv thespiral andedge of bar 49, the other; portionsof there owhaterer position niet/,be causedfbr" the strip folded over the edge of bar 49 to be held there time enough for the metal of the strip to become set. As shown in Fig. ll the fold b of the strip passes through the space 53 formed between surface of the spiral and the inclined surface 52 formed on the bar 49. The upper bar 49 is provided with a groove 7l, in which the fold a of 'this folded part of the strip may travel during further forward movement of the strip between the bars 47, 49 and a guide 72 haring a shape similar to the part of spiral guide 48 shown in F ig. 1l.

The two pairs of feed rollers 54e and 62, located next to the outer end of the upper bar e9, serve to more the strip, bent in the manner described, to rest upon a support 73 eX- tending beyond the outer end of the upper har 49. The bent strip then has the appearance shown in Fig. 12.

In Fig. 18 is shown the manner in which the finished product shown in Fig. l2 is bent upon portion Tet of a suit case.

Haring thus described our what We claim is:

l. ln' a machine for longitudinally bending a strip of sheet material, means forming a deiined path through which a portion or the strip is fed and provided with a invention,

Copies of this patent may he obtained for ve cents each, by addressing the Commissioner of Patents. l

straight edge, means vfor acting upon the other portion oi' said strip comprising a member having a spiral surface Whose inclination varies gradually from an initial position in substantially the plane of the strip to an acutely inclined position relative thereto, one edge of said surface being adjacent to and parallel With said straight edge, and means for feeding the strip parallel to said straight edge.

Q. In a machine for longitudinally bending a. strip of sheet metal7 means forming a defined path through which a portion of the strip is fed and provided with astraight edge; means for acting upon the other portion ot' said strip comprising a member having a spiral surface Whose inclination va* ries gradually from an initial position in substantially the plane of the strip to a position overhanging said straight edge, one edge of said surface being adjacent to and parallel With said straight edge; and means for feeding the strip parallel to said straight edge. y

Signed at New York city, in the county of New York and State of New York, this 99th day of November, A. D. 1916.


Washington, D. C.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2707510 *Aug 17, 1954May 3, 1955Benjamin GershonMethod and apparatus for forming folded edges
US3017694 *Jan 10, 1958Jan 23, 1962Elgen Mfg CorpMetal bending method and product
US3750446 *Nov 5, 1970Aug 7, 1973Niagara Machine Tool WorksShiftable multiple roll forming apparatus
US5191719 *Oct 21, 1991Mar 9, 1993Kitt Steve BDepth gauge for a fishing line
U.S. Classification72/181
Cooperative ClassificationB21D5/08