Seamstress pin

Claim 2

A seamstress pin comprising: an elongated shank having a pointed, fabric engaging end and a base end; an enlarged, disc-shaped pin head lying in a common plane with said pin shank and having opposed side walls with flat surface portions thereon defining therebetween the thickness of said head, said side walls being oriented vertically when said pin head is held in an upright position of use for insertion of said shank in fabric, and said side walls terminating at one end Thereof at a base wall which serves as a fabric engaging surface when said pin head is held in said upright position of use, said shank being affixed to said pin head at a location which is midway between said side walls and which is between the vertical center of said side walls and said base wall.

Claim 3

A seamstress pin as defined in claim 1 wherein: said side walls of said pin head are concave, thereby facilitating the grasping of said pin head between the thumb and forefinger of the user when inserting said pin shank in fabric.

Claim 4

A seamstress pin as defined in claim 1 wherein: said base wall is of curvilinear shape and extends arcuately from a bottom, fabric engaging point upwardly towards said pin shank with said pin head held in said upright position of use.

Claim 5

A seamstress pin as defined in claim 1 wherein: the distance between said pin shank and the bottom, fabric engaging portion of said base wall measured along a line perpendicular to said pin shank is equal to one-half the thickness of said disc measured between said side walls, whereby said pin head may be pivoted to a horizontal position from said upright position with one of said side walls lying against the fabric engaged by said pin shank without changing the elevation of said pin shank above the work surface on which said fabric is resting.

Claim 6

A seamstress pin comprising: an elongated pin shank having a pointed, fabric engaging end and a base end; an enlarged disc-shaped pin head having a curvilinear base wall extending arcuately in a plane coplanar with said pin shank and having elongated, opposed side walls defining therebetween the thickness of said pin head, said side walls being oriented vertically when said pin head is held upright in a normal position of use for insertion of said pin shank in fabric, said base end of said pin shank being centered between said side walls and affixed to said pin head at a vertical distance above the bottom, fabric engaging surface of said base wall which is equal to one-half the thickness of said pin head measured between said side walls, whereby said pin head may be pivoted to a horizontal position with one of said side walls lying against the fabric engaged by said pin shank without changing the elevation of said pin shank above the work surface on which said fabric is resting, and said curvilinear base wall serving as a cam surface making rolling contact with fabric on a work surface to facilitate the insertion of said pin shank in fabric when said pin is held in said normal position of use.

Claim 7

A seamstress pin comprising: an elongated pin shank having a pointed, fabric engaging end and a base end; an enlarged disc-shaped pin head having a curvilinear base wall extending arcuately in a plane coplanar with said pin shank and having elongated, opposed side walls defining therebetween the thickness of said pin head, said side walls being oriented vertically when said pin head is held upright in a normal position of use for insertion of said pin shank in fabric, said base end of said pin shank being centered between said side walls and affixed to said pin head at a vertical distance above the bottom, fabric engaging surface of said base wall which is equal to one-half the thickness of said pin head measured between said side walls, whereby said pin head may be pivoted to a horizontal position with one of said side walls lying against the fabric engaged by said pin shank without changing the elevation of said pin shank above the work surface on which said fabric is resting, and said curvilinear base wall serving as a cam surface making rolling contact with fabric on a work surface to facilitate the insertion of said pin shank in fabric when said pin is held in said normal position of use.