Patent US3741071A successfully refreshed from Google Patents.
US3741071A
Expired / Lapsed
US
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Sensing apparatus for centering a cutting head and tool with respect to a work piece
Assignee: Hoglund Engineering and Manufacturing Co Inc
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Filing: 1970-11-12
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Granted: 1973-06-26
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Expires: 1990-11-12
Abstract
Abstract The apparatus for positioning a cutter or milling head assembly centrally of work pieces having variable dimensions, includes a cutting or milling head assembly mounted for movement in three dimensions. The milling head and tool, during cutting operations, are movable laterally to make a cut centrally of two parallel surfaces, the thickness of the work pieces in most instances varying from work piece to work piece. Attached to the milling head assembly by means of a carriage or slide is a sensing assembly. This assembly is movable toward and from the work piece while the milling head is displaced laterally from the work piece. The sensing assembly has cooperating sensing fingers which in their forward position engage the opposite surfaces of the work piece to determine the center line of the work piece. This information is transmitted through a sensing valve associated with the fingers to a cooperating hydraulic motor and cam which control the vertical position of the milling head and cutter to center them with respect to the work piece, the milling head and cutter assembly being mounted on a slide controlled by the cam.
Inventors
- 👤 N Hoglund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:30
CPC Classifications
B; B23; B23Q; B23Q15/00; B23Q15/007; B23Q15/013; B23Q15/02; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/306664; Y10T409/307224; Y10T409/307336
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
178 words
Sensing apparatus for centering a cutting head and tool with respect to work pieces having parallel surfaces including: a. a milliNg head assembly movable in at least two directions; b. a first slide movable in one of said directions, said milling head assembly being mounted on said first slide; c. a motor having a cam supported adjacent said first slide; d. a second slide having followers thereon, one of said followers engaging said cam and the other of said followers contacting said first slide; e. a third slide mounted on said first slide and movable therewith; f. sensing fingers movable toward and from each other mounted on said third slide; g. a sensing valve on said third slide; h. connections between said motor having a cam and said sensing valve for controlling operation of said motor having a cam; and i. connections between said sensing fingers and said sensing valve for transferring information from said sensing fingers to said sensing valve for controlling operation of said motor to position the milling head assembly relative to a work piece.
Claim 2
Dependent Claim
178 words
Sensing apparatus for centering a cutting head and tool with respect to work pieces having parallel surfaces including: a. a milliNg head assembly movable in at least two directions; b. a first slide movable in one of said directions, said milling head assembly being mounted on said first slide; c. a motor having a cam supported adjacent said first slide; d. a second slide having followers thereon, one of said followers engaging said cam and the other of said followers contacting said first slide; e. a third slide mounted on said first slide and movable therewith; f. sensing fingers movable toward and from each other mounted on said third slide; g. a sensing valve on said third slide; h. connections between said motor having a cam and said sensing valve for controlling operation of said motor having a cam; and i. connections between said sensing fingers and said sensing valve for transferring information from said sensing fingers to said sensing valve for controlling operation of said motor to position the milling head assembly relative to a work piece.
Claim 3
Dependent Claim
134 words
Sensing apparatus for centering a cutting head and tool with respect to work pieces having parallel surfaces including: a. a milling head assembly; b. a first slide movable in one direction, said milling head assembly being mounted on said first slide; c. a motor having a cam supported adjacent said first slide; d. a second slide having oppositely disposed followers thereon, one of said followers engaging said cam and the other of said followers contacting said first slide; e. a third slide mounted on said first slide and movable therewith; f. sensing fingers movable toward and from each other mounted on said third slide; g. a sensing valve on said third slide; and h. connections between said motor having a cam and said sensing valve for controlling operation of said motor having a cam.
Claim 4
Dependent Claim
134 words
Sensing apparatus for centering a cutting head and tool with respect to work pieces having parallel surfaces including: a. a milling head assembly; b. a first slide movable in one direction, said milling head assembly being mounted on said first slide; c. a motor having a cam supported adjacent said first slide; d. a second slide having oppositely disposed followers thereon, one of said followers engaging said cam and the other of said followers contacting said first slide; e. a third slide mounted on said first slide and movable therewith; f. sensing fingers movable toward and from each other mounted on said third slide; g. a sensing valve on said third slide; and h. connections between said motor having a cam and said sensing valve for controlling operation of said motor having a cam.
Claim 5
Dependent Claim
200 words
Cutting apparatus having means for locating the cutting position of a cutting tool, said apparatus including: a. a first slide having a cutting tool assembly mounted thereon; b. a second slide on said first slide; c. means connected between said first and second slides for moving said second slide to and from a work piece; d. a valve mounted on said second slide for controlling the flow of fluid under pressure; e. a sensing mechanism mounted on said second slide, including: f. oppositely disposed sensing fingers for contacting oppositely disposed parallel surfaces of a work piece said fingers being oppositely disposed and pivoted at one end; g. means connecting said sensing fingers and said valve for controlling fluid under pressure through said valve; h. a third slide mounted adjacent said first slide and having oppositely disposed followers thereon; i. a fluid pressure operated motor and cam mounted adjacent said third slide, one of the followers on said third slide contacting said first slide and the other of said followers engaging said cam; and j. connections between said valve and said motor for transmitting fluid under pressure between said valve and said motor for locating the position of the cutting tool.
Claim 6
Dependent Claim
200 words
Cutting apparatus having means for locating the cutting position of a cutting tool, said apparatus including: a. a first slide having a cutting tool assembly mounted thereon; b. a second slide on said first slide; c. means connected between said first and second slides for moving said second slide to and from a work piece; d. a valve mounted on said second slide for controlling the flow of fluid under pressure; e. a sensing mechanism mounted on said second slide, including: f. oppositely disposed sensing fingers for contacting oppositely disposed parallel surfaces of a work piece said fingers being oppositely disposed and pivoted at one end; g. means connecting said sensing fingers and said valve for controlling fluid under pressure through said valve; h. a third slide mounted adjacent said first slide and having oppositely disposed followers thereon; i. a fluid pressure operated motor and cam mounted adjacent said third slide, one of the followers on said third slide contacting said first slide and the other of said followers engaging said cam; and j. connections between said valve and said motor for transmitting fluid under pressure between said valve and said motor for locating the position of the cutting tool.
Claim 7
Dependent Claim
206 words
Cutting apparatus having means for locating the cutting position of a cutting tool, said apparatus including: a. a first slide having a cutting tool assembly mounted thereon; b. a second slide on said first slide movable transversely of said first slide; c. pressure operated means connected between said first and second slides for moving said second slide to and from a work piece; d. a valve mounted on said second slide for controlling the flow of fluid under pressure; e. a sensing mechanism mounted on said second slide, including: f. oppositely disposed sensing fingers for contacting oppositely disposed parallel surfaces of a work piece, said fingers being oppositely disposed and pivoted at one end; g. means connecting said sensing fingers and said valve for controlling fluid under pressure through said valve; h. a third slide mounted adjacent said first slide and having oppoSitely disposed followers thereon; i. a fluid pressure operated motor and cam mounted adjacent said third slide, one of the followers on said third slide contacting said first slide and the other of said followers engaging said cam; and j. connections between said valve and said motor for transmitting pressure between said valve and said motor for locating the position of the cutting tool.
Claim 8
Dependent Claim
206 words
Cutting apparatus having means for locating the cutting position of a cutting tool, said apparatus including: a. a first slide having a cutting tool assembly mounted thereon; b. a second slide on said first slide movable transversely of said first slide; c. pressure operated means connected between said first and second slides for moving said second slide to and from a work piece; d. a valve mounted on said second slide for controlling the flow of fluid under pressure; e. a sensing mechanism mounted on said second slide, including: f. oppositely disposed sensing fingers for contacting oppositely disposed parallel surfaces of a work piece, said fingers being oppositely disposed and pivoted at one end; g. means connecting said sensing fingers and said valve for controlling fluid under pressure through said valve; h. a third slide mounted adjacent said first slide and having oppoSitely disposed followers thereon; i. a fluid pressure operated motor and cam mounted adjacent said third slide, one of the followers on said third slide contacting said first slide and the other of said followers engaging said cam; and j. connections between said valve and said motor for transmitting pressure between said valve and said motor for locating the position of the cutting tool.
Claim 9
Dependent Claim
236 words
Cutting apparatus having means for locating the cutting position of a cutting tool, said apparatus including: a. a first slide having a cutting tool assembly mounted thereon; b. a second slide on said first slide movable transversely of said first slide; c. pressure operated means connected between said first and second slides for moving said second slide to and from a work piece; d. a valve mounted on said second slide for controlling the flow of fluid under pressure; e. a pivoted sensing mechanism mounted on said second slide, including: f. oppositely disposed sensing fingers for contacting oppositely disposed parallel surfaces of a work piece, said fingers being oppositely disposed and pivoted at one end; g. means connecting said sensing fingers and said valve for controlling fluid under pressure through said valve; h. a third slide mounted adjacent said first slide and having oppositely disposed followers thereon; i. a fluid pressure operated motor and cam mounted adjacent said third slide, one of the followers on said third slide contacting said first slide and the other of said followers engaging said cam; j. connections between said valve and said motor for transmitting fluid under pressure between said valve and said motor for locating the position of the cutting tool; and k. electrical means associated with said cutting apparatus including switches and trip dogs associated with said slides for determining the sequence of operation of the cutting apparatus.
Claim 10
Dependent Claim
236 words
Cutting apparatus having means for locating the cutting position of a cutting tool, said apparatus including: a. a first slide having a cutting tool assembly mounted thereon; b. a second slide on said first slide movable transversely of said first slide; c. pressure operated means connected between said first and second slides for moving said second slide to and from a work piece; d. a valve mounted on said second slide for controlling the flow of fluid under pressure; e. a pivoted sensing mechanism mounted on said second slide, including: f. oppositely disposed sensing fingers for contacting oppositely disposed parallel surfaces of a work piece, said fingers being oppositely disposed and pivoted at one end; g. means connecting said sensing fingers and said valve for controlling fluid under pressure through said valve; h. a third slide mounted adjacent said first slide and having oppositely disposed followers thereon; i. a fluid pressure operated motor and cam mounted adjacent said third slide, one of the followers on said third slide contacting said first slide and the other of said followers engaging said cam; j. connections between said valve and said motor for transmitting fluid under pressure between said valve and said motor for locating the position of the cutting tool; and k. electrical means associated with said cutting apparatus including switches and trip dogs associated with said slides for determining the sequence of operation of the cutting apparatus.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |