US PATENT SUBCLASS 72 / 127
BY DEFLECTING SUCCESSIVELY-PRESENTED PORTIONS OF WORK DURING BODILY MOVEMENT THEREOF (E.G., FOR COILING, LEVELLING, CURVING OR TROUGHING MATERIAL IN MOVEMENT)

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

127BY DEFLECTING SUCCESSIVELY-PRESENTED PORTIONS OF WORK DURING BODILY MOVEMENT THEREOF (E.G., FOR COILING, LEVELLING, CURVING OR TROUGHING MATERIAL IN MOVEMENT) {11}
128  DF  .~> With modification or control of temperature or work, tool or machine
129  DF  .~> With cutting of work or product {3}
133  DF  .~> With feeding of discrete articles or orienting of work relative to deflector (other than by deflector)
134  DF  .~> With use of means to remove product from deflector
135  DF  .~> To form helical coil or tube {7}
146  DF  .~> To form spiral coil {2}
149  DF  .~> By use of work-contacting wiper and moving, work-holding form {9}
160  DF  .~> By use of deflected arranged to provide longitudinally undulating path for work (e.g., "leveling") {4}
166  DF  .~> By use of deflectors arranged to bend work longitudinally of direction of work-movement {4}
176  DF  .~> By use of deflector arranged to bend work transversely of direction of work movement (e.g., troughing) {4}
183  DF  .~> By tension applied to work or product (e.g., uncoiling)

DEFINITION

Classification: 72/127

BY DEFLECTING SUCCESSIVELY PRESENTED PORTIONS OF WORK DURING BODILY MOVEMENT THEREOF (E.G., FOR COILING, LEVELLING, CURVING, OR TROUGHING MATERIAL IN MOVEMENT):

(under the class definition) Subject matter including an instrumentality, or step of using an instrumentality, into which work is serially introduced in an original direction along a path, and which instrumentality functions to divert the work away from such path in conformance to either of the

following limitations:

(a)

longitudinally consecutive quanta of work are totally diverted from the original path to a new path about an axis-of-bend* transversely disposed with respect to the original direction; or

(b)

longitudinally consecutive cross sections of work (the cross sections being taken at right angles to the original direction and each cross section having width and breadth dimensions) pass through the instrumentality, and one of the dimensions of the consecutive cross sections is diverted about at least one longitudinally extending axis-of-bend with substantially no change in the magnitude of either dimension.

(1) Note. The "original direction" is established by considering the movement of the work portions that are at the entrance to the work-deforming instrumentality. Having established an "original direction" with respect to the work at the entrance, the longitudinal dimension of work is deemed to be that which is moving in such direction regardless of the extent of that dimension or of the course of movement of any portion of undeformed material (i.e., work portions moving in that direction are "longitudinally consecutive"). Thus, if a piece of work having a short width and a long length moves into the instrumentality along its width dimension "longitudinally consecutive" portions of that workpiece extend along the width dimension. As another example, if the metal is coiled or curved and successive portions thereof move in a spiral or helical path into a straightening device, the "original direction" (established at the device) extends spirally or helically upstream of the device and the portions are deflected from the spiral or helical path into a straight path.

(2) Note. The definition of axis-of-bend in the Glossary of this class is accompanied by drawings, Figures III-1 to III-5, illustrating the products of the devices discussed in (3) Note which follows. The term "quanta of work" (used in part (a) of the definition) refers to portions or masses of work, each portion having dimensions that are (a) infinitesimal in the longitudinal direction, (b) equal to work thickness, and (c) equal to or less than work width. (3) Note. The following types of patent disclosures are exemplary of those placed as original copies in this and indented subclasses (all patents have in common a disclosure that work is moved along an original course of movement):

(a)

a device for deflecting a strand (or strip) entirely around

an axis-of-bend to form; a helical tube (illustrated in the Figure accompanying (1) Note in subclass 49), or a helical coil (illustrated in Figure III-3 in the definition of axis-of-bend*), or a spiral coil (illustrated in Figure III-2 in the definition of axis-of-bend), the product retaining the shape imparted thereto by the deflector;

(b)

a device for "levelling" (i.e., straightening) work by moving it along a general course but deflecting each successive portion first in one direction (partially around a first axis-of-bend) and then in another direction (partially around another axis-of-bend) through an undulating or tortuous path along the general course (illustrated in Figure III-4 in the definition of axis-of-bend), wherein the work moves in its entirety past a group of deflectors and each successive work portion moves in the same undulating path;

(c)

a device wherein the cross-sectional configuration of the work is reshaped by bending about a longitudinal axis-of-bend so as to form a trough (illustrated in Figure III-5, see the definition of axis-of-bend*) or a longitudinally corrugated product (illustrated in Figure 2 accompanying (1) Note of subclass 180); or

(d)

a device wherein a coil is rotated about its central axis and the convolutions thereof are unwound and straightened by deflecting successive work portions partially around an axis-of-bend that is parallel to the coil axis and outside the coil (this operation being the converse of the coiling described in paragraph (a) herein above).

(4) Note. A full discussion of the differences between the structure and function of patents for this class (72) and the patents for Class 242, Winding, Tensioning, or Guiding will be found in Lines With Other Classes, Other Class Relationships, and References to Other Classes, of this class definition (72)

(5) Note. With respect to paragraph (b) of the definition of this subclass (127), the term "deflecting" is limited to bending without change in the cross-sectional area of the material as the work is deformed. If the product of a deforming operation has a cross-sectional area greater than or less than that of the work entering the deforming instrumentality, the deformation is not considered to be a deflecting operation. Such deformation may be found in subclasses pertaining to the reduction of size, as for example, subclasses 199+ wherein a roller-couple reduces the cross-sectional area of the work; subclasses 274+ wherein the area of work is reduced by "drawing" through a die, and subclasses 343+ wherein a sheet is "drawn" into a shell or cup.

SEE OR SEARCH CLASS

428, Stock Material or Miscellaneous Articles,

603, for metallic stock of nonplanar uniform thickness or nonlinear uniform diameter.