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US3827685A Expired / Lapsed US ⏱️ 0.0 years remaining

Cam stop positioning apparatus

Assignee: Dayton Rogers Manufacturing Co
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Filing: 1972-09-22
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Granted: 1974-08-06
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Expires: 1992-09-22
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Abstract

Abstract Apparatus for positioning a work piece on a machine tool surface, said apparatus having a variable cam edge for holding the work piece and a calibrated scale for accurately repositioning the work piece.

Inventors

  • 👤 S Wennes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 05:48
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/02; B23Q3/06; B25; B25B; B25B5/00; B25B5/06; B25B5/08

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 160 words
Apparatus for slidably positioning a workpiece on a work surface, comprising: a. a rotatably adjustable cam for abutting an edge of said workpiece and having a mounting hole and cam edge partially described by the equation R A theta , where R is the distance of the cammed edge from the center of the mounting hole, A is a constant, and theta is the angular rotation of R measured about the mounting hole; b. means for affixing said cam relative to said work surface and comprising a mounting bracket having a slot near one of its ends for receiving a bolt for clamping said mounting bracket to said work surface, and having a mounting hole near another of its ends for receiving a bolt for clamping to said cam mounting hole; said cam having at least one radial scribe mark and said mounting bracket having a plurality of radial scribe marks at regular angular intervals about said cam mounting hole.
Claim 2
Dependent Claim 160 words
Apparatus for slidably positioning a workpiece on a work surface, comprising: a. a rotatably adjustable cam for abutting an edge of said workpiece and having a mounting hole and cam edge partially described by the equation R A theta , where R is the distance of the cammed edge from the center of the mounting hole, A is a constant, and theta is the angular rotation of R measured about the mounting hole; b. means for affixing said cam relative to said work surface and comprising a mounting bracket having a slot near one of its ends for receiving a bolt for clamping said mounting bracket to said work surface, and having a mounting hole near another of its ends for receiving a bolt for clamping to said cam mounting hole; said cam having at least one radial scribe mark and said mounting bracket having a plurality of radial scribe marks at regular angular intervals about said cam mounting hole.
Claim 3
Dependent Claim 155 words
Apparatus for slidably positioning a workpiece on a work surface, comprising: a. a rotatably adjustable cam for abutting an edge of said workpiece and having a mounting hole and a cam edge partially described by the equation R A theta , where R is the distance of the cammed edge from the center of the mounting hole, A is a constant, and theta is the angular rotation of R measured about the mounting hole; b. means for affixing said cam relative to said work surface and comprising a first mounting bracket for attaching to said work surface, said bracket having a perpendicular end member; and a second L-bracket having one of its legs bolted to said perpendicular end member, and having a hole in the other of its legs for receiving a bolt for clamping through said cam mounting hole, said second L-bracket having a slotted hole for slidably mounting against said first mounting bracket.
Claim 4
Dependent Claim 155 words
Apparatus for slidably positioning a workpiece on a work surface, comprising: a. a rotatably adjustable cam for abutting an edge of said workpiece and having a mounting hole and a cam edge partially described by the equation R A theta , where R is the distance of the cammed edge from the center of the mounting hole, A is a constant, and theta is the angular rotation of R measured about the mounting hole; b. means for affixing said cam relative to said work surface and comprising a first mounting bracket for attaching to said work surface, said bracket having a perpendicular end member; and a second L-bracket having one of its legs bolted to said perpendicular end member, and having a hole in the other of its legs for receiving a bolt for clamping through said cam mounting hole, said second L-bracket having a slotted hole for slidably mounting against said first mounting bracket.
Claim 5
Dependent Claim 82 words
A cam positioning device for accurate positioning of a work piece with respect to a mmachine tool and comprising a cam adjustable by rotation about its axis and having a cam edge for abutting the work piece, the radial distance from the cam axis to the cam edge being linearly proportional to the angle of rotation of the cam about the axis; means for affixing the cam relative to the machine tool; and means visually indicating increments of rotation of the cam.
Claim 6
Dependent Claim 82 words
A cam positioning device for accurate positioning of a work piece with respect to a mmachine tool and comprising a cam adjustable by rotation about its axis and having a cam edge for abutting the work piece, the radial distance from the cam axis to the cam edge being linearly proportional to the angle of rotation of the cam about the axis; means for affixing the cam relative to the machine tool; and means visually indicating increments of rotation of the cam.
Claim 7
Dependent Claim 111 words
A cam positioning device for slidably positioning a work piece on a work surface, comprising a cam adjustable by rotation about its axis and having a cam edge for abutting the work piece, the cam edge being partially described by the equation R A theta where R is the radial distance of the cam edge to its axis, A is a constant, and theta is the angular rotation of the cam about its axis; a mounting bracket for positioning the cam relative to the work surface, the mounting bracket and the cam having cooperating radial scribe marks indicating angular increments of rotation of the cam with respect to the mounting bracket.
Claim 8
Dependent Claim 111 words
A cam positioning device for slidably positioning a work piece on a work surface, comprising a cam adjustable by rotation about its axis and having a cam edge for abutting the work piece, the cam edge being partially described by the equation R A theta where R is the radial distance of the cam edge to its axis, A is a constant, and theta is the angular rotation of the cam about its axis; a mounting bracket for positioning the cam relative to the work surface, the mounting bracket and the cam having cooperating radial scribe marks indicating angular increments of rotation of the cam with respect to the mounting bracket.
Claim 9
Dependent Claim 104 words
A cam positioning device for slidably positioning a work piece on a work surface, comprising a cam rotatively adjustable about its axis and having a cam edge abutting the work piece, the distance from the cam edge to the axis being linearly proportional to the angle of rotation of the cam about the axis; a first L-shaped mounting bracket attachable to the work surface and having an end member perpendicular to the work surface; a second L-shaped bracket having one of its legs bolted through a slotted hole to the perpendicular end member of the first bracket to permit slidable movement between the brackets.
Claim 10
Dependent Claim 104 words
A cam positioning device for slidably positioning a work piece on a work surface, comprising a cam rotatively adjustable about its axis and having a cam edge abutting the work piece, the distance from the cam edge to the axis being linearly proportional to the angle of rotation of the cam about the axis; a first L-shaped mounting bracket attachable to the work surface and having an end member perpendicular to the work surface; a second L-shaped bracket having one of its legs bolted through a slotted hole to the perpendicular end member of the first bracket to permit slidable movement between the brackets.
Claim 11
Dependent Claim 207 words
Apparatus for slidably positioning a work piece on a work surface, comprising: a. a rotatively adjustable cam for abutting an edge of said work piece and having a mounting hole and a cam edge partially described by the equation R Awhere R is the distance of the cam edge from the center of the mounting hole, A is a constant, and theta is the angular rotation of the cam; and b. means for affixing the cam relative to the work surface and comprising a first L-shaped mounting bracket attachable to the work surface and having an end member perpendicular to the work surface, anD a second L-shaped bracket having one of its legs bolted through a slotted hole therein to the perpendicular end member of the first mounting bracket to permit one bracket to slide relative to the other, the second bracket having a hole in the other of its legs for receiving a bolt for clamping through said cam mounting hole; the mounting bracket having a plurality of radial scribe marks at regular angular intervals about the cam mounting hole and the cam having at least one radial scribe mark alignable with the mounting bracket scribe marks to indicate increments of angular rotation of the cam.
Claim 12
Dependent Claim 207 words
Apparatus for slidably positioning a work piece on a work surface, comprising: a. a rotatively adjustable cam for abutting an edge of said work piece and having a mounting hole and a cam edge partially described by the equation R Awhere R is the distance of the cam edge from the center of the mounting hole, A is a constant, and theta is the angular rotation of the cam; and b. means for affixing the cam relative to the work surface and comprising a first L-shaped mounting bracket attachable to the work surface and having an end member perpendicular to the work surface, anD a second L-shaped bracket having one of its legs bolted through a slotted hole therein to the perpendicular end member of the first mounting bracket to permit one bracket to slide relative to the other, the second bracket having a hole in the other of its legs for receiving a bolt for clamping through said cam mounting hole; the mounting bracket having a plurality of radial scribe marks at regular angular intervals about the cam mounting hole and the cam having at least one radial scribe mark alignable with the mounting bracket scribe marks to indicate increments of angular rotation of the cam.
Claim 13
Dependent Claim 31 words
The apparatus of claim 4, wherein the distance of the cam edge from the center of the mounting hole increases 0.001 inch per degree of angular rotation about the mounting hole.
Claim 14
Dependent Claim 35 words
The apparatus of claim 5, wherein said cam has at least one radial scribe mark and said mounting bracket has a plurality of radial scribe marks at regular angular intervals about said cam mounting hole.

References Cited (Backward Citations)

US1375312A Cited
FR929554A Cited
GB648519A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-08-05 1978-02-04 1978-08-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-08-05 1982-02-04 1982-08-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-08-05 1986-02-04 1986-08-06 $7700.00 Window Closed / Lapsed

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