US3923086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable radial arm apparatus for use with a router or the like
Assignee: Individual
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Filing: 1974-02-25
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Granted: 1975-12-02
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Expires: 1994-02-25
Abstract
Abstract An adjustable radial arm or frame apparatus for use with a cutting tool, such as a router, for selectively positioning the cutting tool, which is associated with the free or distal end of the radial arm of the apparatus in one embodiment and with a cross member in another embodiment, over a workpiece so that a great variety of forms may be cut in the workpiece. The apparatus provides two groups of motions, each of which permits the movement of the cutting tool in an infinite number of pathways from one point in a sphere to a second point in the sphere.
Inventors
- 👤 Jr Daniel M Spohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:00
CPC Classifications
B; B23; B23D; B23D59/00; B23D59/001; B23D59/002; B23D57/00; B23D57/0076; B23Q; B23Q1/00; B23Q1/01; B23Q1/012; B23Q1/25; B23Q1/44; B23Q1/48; B27; B27B; B27B5/00; B27B5/16; B27B5/18; B27B5/20; B27B5/201; B27C; B27C5/00; B27C5/02; Y; Y10; Y10T; Y10T408/00; Y10T408/91; Y10T408/93; Y10T408/935; Y10T409/00; Y10T409/30; Y10T409/30784; Y10T409/308512; Y10T409/309576; Y10T409/309632; Y10T83/00; Y10T83/768; Y10T83/7684; Y10T83/7693; Y10T83/7697
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
476 words
An apparatus for selectively positioning a tool over a workpiece, comprising: a vertically adjustable radial arm having its longitudinal axis disposed in a horizontal plane; said arm being movably secured at its proximal end for selective vertical movement and for angular rotational movement about said proximal end as an axis, and said arm comprising a sleeve member and a core member, said core member and said sleeve member being selectively linearly extendable and being selectively rotatable relative to each other about their longitudinal axis; a cross slide pivot head secured to the distal end of said telescopic radial arm for linear vertical, linear horizontal, vertical plane rotational, and horizontal plane angular movement therewith, said pivot head having a pivot axis disposed generally perpendicular to the longitudinal axis of said core member and said sleeve member; a rotatable head secured to said pivot head for all said linear, rotational, and angular movements therewith and for rotational movement relative to said head about an axis generally parallel to said pivot head axis; a swivel slide block secured to said rotatable head for all the foregoing movements therewith, and wherein a first portion of said block is mounted for linear movement relative to said rotatable head in a direction generally parallel to said rotatable head axis and a second portion is mounted for pivotable movement about an axis generally perpendicular to said rotatable head axis; and wherein said second portion is adapted to hold said tool; an elongated cross slide secured to said pivot head for linear vertical, linear horizontal, vertical plane rotational and horizontal plane angular movement therewith for rotational movement about the pivot head axis; and for slidable linear movement relative to and perpendicular to said pivot head axis; feed means operatively associate with said swivel slide block to effect said Linear movement of said swivel slide block; adjustable feed control means operatively interconnecting said swivel slide block and said rotatable head to effect said linear movement of said swivel slide block relative to said rotatable head; feed control means comprising an elongated depth gage connected to said swivel slide block such that the longitudinal axis of said gage is disposed substantially parallel to the direction of linear movement of said swivel block slide, said gage projecting from said swivel slide block next to said rotatable head; adjustable stops operatively associated with said gage; an abutment attached to said rotatable head; said abutment and said stops coacting to limit linear movement of said swivel slide block; a hollow locating aperture located through said cross slide pivot head concentric with the pivotal axis of said pivot head; and a cross slide pivot head locating rod adapted to be removably inserted through said locating aperture, and wherein said locating rod is used to properly orient the pivotal axis of said cross slide pivot head with respect to the workpiece.
Claim 2
Independent Claim
476 words
An apparatus for selectively positioning a tool over a workpiece, comprising: a vertically adjustable radial arm having its longitudinal axis disposed in a horizontal plane; said arm being movably secured at its proximal end for selective vertical movement and for angular rotational movement about said proximal end as an axis, and said arm comprising a sleeve member and a core member, said core member and said sleeve member being selectively linearly extendable and being selectively rotatable relative to each other about their longitudinal axis; a cross slide pivot head secured to the distal end of said telescopic radial arm for linear vertical, linear horizontal, vertical plane rotational, and horizontal plane angular movement therewith, said pivot head having a pivot axis disposed generally perpendicular to the longitudinal axis of said core member and said sleeve member; a rotatable head secured to said pivot head for all said linear, rotational, and angular movements therewith and for rotational movement relative to said head about an axis generally parallel to said pivot head axis; a swivel slide block secured to said rotatable head for all the foregoing movements therewith, and wherein a first portion of said block is mounted for linear movement relative to said rotatable head in a direction generally parallel to said rotatable head axis and a second portion is mounted for pivotable movement about an axis generally perpendicular to said rotatable head axis; and wherein said second portion is adapted to hold said tool; an elongated cross slide secured to said pivot head for linear vertical, linear horizontal, vertical plane rotational and horizontal plane angular movement therewith for rotational movement about the pivot head axis; and for slidable linear movement relative to and perpendicular to said pivot head axis; feed means operatively associate with said swivel slide block to effect said Linear movement of said swivel slide block; adjustable feed control means operatively interconnecting said swivel slide block and said rotatable head to effect said linear movement of said swivel slide block relative to said rotatable head; feed control means comprising an elongated depth gage connected to said swivel slide block such that the longitudinal axis of said gage is disposed substantially parallel to the direction of linear movement of said swivel block slide, said gage projecting from said swivel slide block next to said rotatable head; adjustable stops operatively associated with said gage; an abutment attached to said rotatable head; said abutment and said stops coacting to limit linear movement of said swivel slide block; a hollow locating aperture located through said cross slide pivot head concentric with the pivotal axis of said pivot head; and a cross slide pivot head locating rod adapted to be removably inserted through said locating aperture, and wherein said locating rod is used to properly orient the pivotal axis of said cross slide pivot head with respect to the workpiece.
Claim 3
Independent Claim
349 words
An apparatus for selectively positioning a tool over a workpiece, comprising: a vertically adjustable radial arm having its longitudinal axis disposed in a horizontal plane; said arm being movably secured at its proximal end for selective vertical movement and for angular rotational movement about said proximal end as an axis, and said arm comprising a sleeve member and a core member, said core member and said sleeve member being selectively linearly extendable and being selectively rotatable relative to each other about their longitudinal axis; a cross slide pivot head secured to the distal end of said telescopic radial arm for linear vertical, linear horizontal, vertical plane rotational, and horizontal plane angular movement therewith, said pivot head having a pivot axis disposed generally perpendicular to the longitudinal axis of said core member and said sleeve member; a rotatable head secured to said pivot head for all said linear, rotational, and angular movements therewith and for rotational movement relative to said head about an axis generally parallel to said pivot head axis; a swivel slide block secured to said rotatable head for all the foregoing movements therewith, and wherein a first portion of said block is mounted for linear movement relative to said rotatable head in a direction generally parallel to said rotatable head axis and a second portion is mounted for pivotable movement about an axis generally perpendicular to said rotatable head axis; and wherein said second portion is adapted to hold said tool; an elongated cross slide secured to said pivot head for linear vertical, linear horizontal, vertical plane rotational and horizontal plane angular movement therewith for rotational movement about the pivot head axis; and for slidable linear movement relative to and perpendicular to said pivot head axis; a hollow locating aperture located through said cross slide pivot head concentric with the pivotal axis of said pivot head; and a cross slide pivot head locating rod adapted to be removably inserted through said locating aperture, and wherein said locating rod is used to properly orient the pivotal axis of said cross slide pivot head with respect to the workpiece.
Claim 4
Independent Claim
349 words
An apparatus for selectively positioning a tool over a workpiece, comprising: a vertically adjustable radial arm having its longitudinal axis disposed in a horizontal plane; said arm being movably secured at its proximal end for selective vertical movement and for angular rotational movement about said proximal end as an axis, and said arm comprising a sleeve member and a core member, said core member and said sleeve member being selectively linearly extendable and being selectively rotatable relative to each other about their longitudinal axis; a cross slide pivot head secured to the distal end of said telescopic radial arm for linear vertical, linear horizontal, vertical plane rotational, and horizontal plane angular movement therewith, said pivot head having a pivot axis disposed generally perpendicular to the longitudinal axis of said core member and said sleeve member; a rotatable head secured to said pivot head for all said linear, rotational, and angular movements therewith and for rotational movement relative to said head about an axis generally parallel to said pivot head axis; a swivel slide block secured to said rotatable head for all the foregoing movements therewith, and wherein a first portion of said block is mounted for linear movement relative to said rotatable head in a direction generally parallel to said rotatable head axis and a second portion is mounted for pivotable movement about an axis generally perpendicular to said rotatable head axis; and wherein said second portion is adapted to hold said tool; an elongated cross slide secured to said pivot head for linear vertical, linear horizontal, vertical plane rotational and horizontal plane angular movement therewith for rotational movement about the pivot head axis; and for slidable linear movement relative to and perpendicular to said pivot head axis; a hollow locating aperture located through said cross slide pivot head concentric with the pivotal axis of said pivot head; and a cross slide pivot head locating rod adapted to be removably inserted through said locating aperture, and wherein said locating rod is used to properly orient the pivotal axis of said cross slide pivot head with respect to the workpiece.
Claim 5
Dependent Claim
27 words
An apparatus as defined in claim 2 and including selectively positionable stop members for stopping movement of said cross slide and said pivot head in desired positions.
Claim 6
Dependent Claim
25 words
An apparatus as defined in claim 2 and further comprising: a vertical column, said proximal end of said radial arm being secured to said column.
Claim 7
Dependent Claim
135 words
An apparatus as defined in claim 2 and further comprising: first locking means for selectively holding said radial arm at a predetermined vertical location; second locking means for selectively preventing said linear extension and said rotation of said core and sleeve relative to each other; third locking means for selectively preventing said cross slide pivot head from rotational movement about said pivot shaft; fourth locking means for selectively preventing said slidable linear movement of said cross slide; fifth locking means for selectively preventing said rotational movement of said rotatable head relative to said elongated cross slide; sixth locking means for selectively preventing said linear movement of said swivel slide block relative to said rotatable head; and seventh locking means for selectively preventing said pivotable movement of said swivel slide block relative to said rotatable head.
Claim 8
Dependent Claim
66 words
An apparatus as defined in claim 2 and further comprising: first detent means operatively associated with said cross slide pivot head for indicating the arc through which said pivot head has been moved about said pivot head axis; and second detent means operatively associated with said cross slide for indicating the linear distance which said cross slide has been moved relative to said pivot head axis.
Claim 9
Dependent Claim
29 words
An apparatus as defined in claim 2 and further comprising feed means operatively associated with said swivel slide block to effect said linear movement of said swivel slide block.
Claim 10
Dependent Claim
58 words
An apparatus as defined in claim 6 and wherein said swivel slide block comprises: a slide block as said first portion, said slide block being secured to said rotatable head; a swivel block as said second portion; and a shaft joining said slide block and said swivel block and defining said axis of rotation of said swivel block.
Claim 11
Dependent Claim
45 words
An apparatus as defined in claim 7 wherein said feed means comprises: a gear rack positioned parallel to said rotatable head axis; and a gear rotatably mounted to said rotatable head, the teeth of said gear operatively meshing with the teeth of said gear rack.
Claim 12
Dependent Claim
39 words
An apparatus as defined in claim 7 and further comprising adjustable feed control means operatively interconnecting said swivel slide block and said rotatable head to effect said linear movement of said swivel slide block relative to said rotatable head.
Claim 13
Dependent Claim
89 words
An apparatus as defined in claim 10, wherein said feed control means comprises: an elongated depth gage connected to said said swivel slide block such that the longitudinal axis of said gage is disposed substantially parallel to the direction of linear movement of said swivel block slide, said gage projecting from said swivel slide block next to said rotatable head; adjustable stops operatively associated with said gage; an abutment attached to said rotatable head; said abutment and said stops coacting to limit linear movement of said swivel slide block.
Claim 14
Dependent Claim
61 words
An apparatus as defined in claim 11 and further comprising: first indicia means connected to said cross slide pivot head for determining the arc through which said cross slide pivot head has been moved about its pivotal axis; second indicia means connected to said cross slide for determining the linear distance said cross slide has moved relative to said pivot head.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |