Discard mount for disc type grinding wheel

Claim 2

A disc type grinding wheel with a disposable mount permanently attached thereto, said mount comprising a hollow elongated cylindrical body symmetrical about a central axis and extending through a central hole in said grinding wheel, including a radially enlarged flange adjacent one end thereof, a tubular portion of predetermined wall thickness adjacent to the other end thereof, and a lengthwise section of said tubular portion of a relatively reduced wall thickness to facilitate forming a pleat therein, and disposed at a predetermined location lengthwise of said tubular portion such that a pleat with a conical surface formed therein constrains said grinding wheel, and of a predetermined limited length such that a pleat with a conical surface formed therein must be formed perpendicular to the central axis of said cylindrical body, said lengthwise section being bowed outwardly by displacement of said tubular portion a predetermined distance toward said radially enlarged flange to form a radially outwardly extending pleat with a conical surface effective to constrain the body of said mount radially thereof and effective in combination with said radially enlarged flange to secure the body of said mount lengthwise thereof to said grinding wheel.

Claim 3

A disc type grinding wheel with a disposable mount permanently attached thereto, said mount comprising a hollow elongated cylindrical body symmetrical about a central axis and extending through a central hole in said grinding wheel, including a radially enlarged flange adjacent one end thereof, a tubular portion of predetermined wall thickness adjacent to the other end thereof, and a lengthwise section of said tubular portion of a relatively reduced wall thickness to facilitate forming a pleat therein, and disposed at a predetermined location lengthwise of said tubular portion such that a pleat with a conical surface formed therein constrains said grinding wheel, and of a predetermined limited length such that a pleat with a conical surface formed therein must be formed perpendicular to the central axis of said cylindrical body, said lengthwise section being bowed outwardly by displacement of said tubular portion a predetermined distance toward said radially enlarged flange to form a radially outwardly extending pleat with a conical surface effective to constrain the body of said mount radially thereof and effective in combination with said radially enlarged flange to secure the body of said mount lengthwise thereof to said grinding wheel.

Claim 4

A disc type grinding wheel with a disposable mount permanently attached thereto, said mount comprising a hollow elongated cylindrical body symmetrical about a central axis and extending through a central hole in said grinding wheel, including a radially enlarged flange adjacent one end thereof, a tubular portion of predetermined wall thickness adjacent to the other end thereof, and a lengthwise section of said tubular portion of a relatively reduced wall thickness to facilitate forming a pleat therein, and disposed at a predetermined location lengthwise of said tubular portion such that a pleat with a conical surface formed therein constrains said grinding wheel, and of a predetermined limited length such that a pleat with a conical surface formed therein must be formed perpendicular to the central axis of said cylindrical body, said lengthwise section being bowed outwardly by displacement of said tubular portion a predetermined distance toward said radially enlarged flange to form a radially outwardly extending pleat with a conical surface effective to constrain the body of said mount radially thereof and effective in combination with said radially enlarged flange to secure the body of said mount lengthwise thereof to said grinding wheel.

Claim 5

A disc type grinding wHeel with a disposable mount permanently attached thereto, said mount comprising: a hollow elongated cylindrical body symmetrical about its central axis and extending through a central hole in said grinding wheel, including a radially enlarged flange adjacent the rear face of said grinding wheel, a tubular portion extending from adjacent said radially enlarged flange to the front end of said circular body projecting beyond the front face of said grinding wheel, and a lengthwise section of said tubular portion of relatively reduced wall thickness as compared to the front end of said circular body to facilitate forming a pleat therein, and disposed at a predetermined location lengthwise of said tubular portion such that a pleat with a conical surface formed therein constrains said grinding wheel, and of a predetermined limited length such that a pleat with a conical surface formed therein must be formed perpendicular to the central axis of said cylindrical body, said lengthwise section being bulged outwardly by displacement of the front end of said circular body and thence said tubular portion a predetermined distance toward said radially enlarged flange to form a radially outwardly extending pleat with a conical surface effective to secure fixedly the body of said mount radially relative to said grinding wheel and effective in combination with said radially enlarged flange to secure fixedly the body of said mount lengthwise thereof to said grinding wheel.

Claim 6

A disc type grinding wHeel with a disposable mount permanently attached thereto, said mount comprising: a hollow elongated cylindrical body symmetrical about its central axis and extending through a central hole in said grinding wheel, including a radially enlarged flange adjacent the rear face of said grinding wheel, a tubular portion extending from adjacent said radially enlarged flange to the front end of said circular body projecting beyond the front face of said grinding wheel, and a lengthwise section of said tubular portion of relatively reduced wall thickness as compared to the front end of said circular body to facilitate forming a pleat therein, and disposed at a predetermined location lengthwise of said tubular portion such that a pleat with a conical surface formed therein constrains said grinding wheel, and of a predetermined limited length such that a pleat with a conical surface formed therein must be formed perpendicular to the central axis of said cylindrical body, said lengthwise section being bulged outwardly by displacement of the front end of said circular body and thence said tubular portion a predetermined distance toward said radially enlarged flange to form a radially outwardly extending pleat with a conical surface effective to secure fixedly the body of said mount radially relative to said grinding wheel and effective in combination with said radially enlarged flange to secure fixedly the body of said mount lengthwise thereof to said grinding wheel.

Claim 7

A disc type grinding wheel with a front face and a rear face and with a disposable mount permanently attached thereto, said mount comprising: a hollow elongated cylindrical body symmetrical about a central axis including a radially enlarged flange adjacent one end thereof and engaged with the front face of said grinding wheel, a tubular portion of predetermined wall thickness adjacent to the other end thereof and projecting through a central opening in said grinding wheel and beyond the rear face of said grinding wheel, and a lengthwise section of said tubular portion of relatively reduced wall thickness to facilitate forming a pleat therein, and disposed at a predetermined location lengthwise of said tubular portion such that a pleat with a conical surface formed therein constrains said grinding wheel, and of a predetermined limited length such that a pleat with a conical surface formed therein must be formed perpendicular to the central axis of said cylindrical body, said lengthwise section being bowed outwardly by displacement of said tubular portion a predetermined distance toward said radially enlarged flange to form a radially outwardly extending pleat with a conical surface effective to constrain the body of said mount radially thereof and effective in combination with said radially enlarged flange to secure the body of said mount lengthwise thereof to said grinding wheel.

Claim 8

A disc type grinding wheel with a front face and a rear face and with a disposable mount permanently attached thereto, said mount comprising: a hollow elongated cylindrical body symmetrical about a central axis including a radially enlarged flange adjacent one end thereof and engaged with the front face of said grinding wheel, a tubular portion of predetermined wall thickness adjacent to the other end thereof and projecting through a central opening in said grinding wheel and beyond the rear face of said grinding wheel, and a lengthwise section of said tubular portion of relatively reduced wall thickness to facilitate forming a pleat therein, and disposed at a predetermined location lengthwise of said tubular portion such that a pleat with a conical surface formed therein constrains said grinding wheel, and of a predetermined limited length such that a pleat with a conical surface formed therein must be formed perpendicular to the central axis of said cylindrical body, said lengthwise section being bowed outwardly by displacement of said tubular portion a predetermined distance toward said radially enlarged flange to form a radially outwardly extending pleat with a conical surface effective to constrain the body of said mount radially thereof and effective in combination with said radially enlarged flange to secure the body of said mount lengthwise thereof to said grinding wheel.

Claim 9

A device as described in claim 3, additionally including a radially extended back pad with a circular inner edge defining the periphery of a central opening through said back pad, said back pad being maintained in engagement with the rear face of said grinding wheel by engagement of the conical surface of said pleat with the periphery of the central opening through said back pad.

Claim 10

A device as described in claim 4, wherein said back pad includes a flange encircling the central opening through said back pad extending rearwardly of the back pad and lengthwise of said mount, said flange having a beveled surface located adjacent the periphery of the central opening through said back pad and also engaged by the conical surface of said pleat.