US PATENT SUBCLASS 414 / 14
STOCK PULLING OR PUSHING

Current as of: June, 1999
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414 /   HD   MATERIAL OR ARTICLE HANDLING

14STOCK PULLING OR PUSHING {5}
15  DF  .~> With means ejecting stock remnant
16  DF  .~> With additional diverse motion of stock
17  DF  .~> With fluid pressure actuated pushing or pulling means
18  DF  .~> Stock end face pushers {1}
20  DF  .~> Sheet stock lead end pullers

DEFINITION

Classification: 414/14

STOCK PULLING OR PUSHING:

(under the class definition) Apparatus for advancing or feeding elongated work relative to a device to treat or modify the work (e.g., lathe, puncher, etc.) by means which either (a) engages the work at its forward portion and draws it into position, or (b) contacts it at the rear surface and shoves it into position.

(1) Note. The feeding means can be mounted on the tool turret of a manufacturing machine.

(2) Note. The work may be delivered to a work holder (e.g., a chuck) which may be part of a work modifying means (e.g., a lathe or punch) and the work holder may be operated to grasp or clamp the work, provided that no more of the work modifying means is claimed than that necessary to receive and retain the work. Means to start and stop the work modifying means or to move the work holder (a) during a step in which actual work modification occurs, or (b) in a direction other than a feeding direction are therefore excluded; such means

claimed in combination with stock pushing or pulling means are also excluded. For example, a nominally claimed means to rotate a chuck or to start or stop a lathe would be excluded and classified in the appropriate work modifying class; a means to start or stop the work feeding or remnant ejecting means, per se, is proper subject matter for this subclass.

SEE OR SEARCH CLASS

29, Metal Working, appropriate subclasses for devices for pushing or pulling metal stock having claimed in combination therewith a tool for working on the stock, or means producing a special motion of the stock for facilitating metal working.

82, Turning,

124+, for devices for pushing or pulling a workpiece to or from a lathe combined with means for effecting a relative rotation between the workpiece and the cutting element of the lathe. 83, Cutting, appropriate subclasses for devices for pushing or pulling a workpiece having in combination therewith means to sever of cut off the work to predetermined lengths.

144, Woodworking,

245, for feeding a wood workpiece to a cutter of the type provided in Class 144.

198, Conveyors: Power-Driven,

736+, for article transfer by a reciprocating pusher.

221, Article Dispensing, appropriate subclasses for article dispensing or feeding devices not otherwise provided for, and especially feeding devices combined with means for separating one or more articles from a stack which is comprised of more articles than are fed in any one feeding operation.

226, Advancing Material of Indeterminate Length, appropriate subclasses for methods of and apparatus for feeding running and indefinite lengths of stock or work, without utilizing the leading or trailing end to effect the feeding motion. See search notes in Class 226 for references to other feeding classes.

271, Sheet Feeding or Delivering, appropriate subclasses for feeding of flexible sheets, especially feeding from a stack or to a receiver, predicated upon the flexible nature of the sheets.

470, Threaded, Headed Fastener, or Washer Making: Process and Apparatus,

164+, for feeding of work blanks or stock pieces specialized

to the purpose of Class 470, or claimed in nominal combination with such machines.