US321192A - John connell - Google Patents
John connell Download PDFInfo
- Publication number
- US321192A US321192A US321192DA US321192A US 321192 A US321192 A US 321192A US 321192D A US321192D A US 321192DA US 321192 A US321192 A US 321192A
- Authority
- US
- United States
- Prior art keywords
- frame
- saw
- john
- lever
- swing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 description 2
- 230000003247 decreasing Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/16—Saw benches
- B27B5/18—Saw benches with feedable circular saw blade, e.g. arranged on a carriage
- B27B5/188—Saw benches with feedable circular saw blade, e.g. arranged on a carriage the saw blade being mounted on a hanging arm or at the end of a set of bars, e.g. parallelograms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7755—Carrier for rotatable tool movable during cutting
- Y10T83/7788—Tool carrier oscillated or rotated
Definitions
- Figure 1 is a side elevation.
- Fig. 2 is a front elevation.
- Fig. 3 is a sectional view showing the mode of suspending the frame of my improved swing-saw.
- the object of my invention is to produce a swing-saw which shall require as nearly as possible a uniform amount offorce to causeit to move through the requisite path in doing the work, but have a constant tendency to swing backward away from the saw table or bench when released by the attendant; and to this end it consists in the peculiar combination and arrangement with the swinging frame of the saw of a pivoted angular lever provided with a weight which acts with decreasing force as the saw advances toward the operator from the vertical line.
- Swingsaws have been heretofore combined with weighted chains, levers, and other devices variously constructed and arranged, but objectionable on account of their expense, complexity, and liability to release the saw-in the event of breakage, &c. I have overcome these objections, and constructed an exceedingly cheap,dnrable,and safe swing-saw,which I have shown by trial to be entirely reliable in practical use, by combining with the swinging frame an angular lever carrying a weight, the resistance of which decreases as that of the frame increases, so that the force required to move the saw is practically uniform throughout its entire movement.
- My improved swingsaw consists, essentially, of the vibrating frame A, hangers O O, angular lever D, weight E, driving-shaft F, provided with suitable pulleys, and saw-mandrel G, supporting saw H.
- the hangers are of any ordinary construction, the swinging frame A being supported thereon by the studs 43 i, the longitudinal axis of which corresponds with that of the driving-shaft F.
- the shaft F. is supported in suitable journalboxes in the frame, and is provided with the tight and loose pulleys J J and larger pulley K, from which motion is transmitted to the pulley L on the saw-mandrel by the belt N.
- a handle, P may be attached to the frame for convenience in operating the machine.
- the bent arm r of the lever D is pivoted on a stud, s, to an arm, a, of the hanger O, or other suitable support, the pivotal point beinglocated at some distance below the axis on which the frame swings, and preferably in the same vertical plane.
- a stud or roller, 1!, attached to the frame bears against the side of the bent part r of thelever.
- the rollert causes the lever carrying the weight E to swing upward, as indicated by the dotted lines.
- the lever and weight will occupy the positions indicated by the dotted lines D E, and at the extreme limitof the forward movement of the frame the lever and weight will be thrown upward to D E.
- the lever swings the greater the proportion of the weight thrown on the stud s, so that th resistance of the weight to the movement of the frame decreases as the frame is moved forward.
- swinging frame may be supported in various different manners without departing from the principle of my invention.
- the frame A is cast hollow, in one piece, in order to secure strength combined with lightness.
Description
NITED STATES PATENT OFFI E.
JOHN OONNELL, OF ROCHESTER, NEW YORK.
CIRCULAR SAWING MACHINE.
SPECIFICATION forming part of Letters Patent No. 321,192, dated June 30, 1885.
Application filed November 28, 1884. (No model.)
To all whom it may concern.-
Be it known that 1, JOHN GoNNELL, of the city of Rochester, in the county of Monroe and State of New York, have invented certain Improvements in Swing-Saws, of which the following is a specification, reference being bad to the accompanying drawings.
My invention relates to certain improvements in swing-saws, which improvements are fully described in the following specification, and the novel features specified in the annexed claims.
In the accompanying drawings, representing my improvements in swing-saws, Figure 1 is a side elevation. Fig. 2 is a front elevation. Fig. 3 is a sectional view showing the mode of suspending the frame of my improved swing-saw.
The object of my invention is to produce a swing-saw which shall require as nearly as possible a uniform amount offorce to causeit to move through the requisite path in doing the work, but have a constant tendency to swing backward away from the saw table or bench when released by the attendant; and to this end it consists in the peculiar combination and arrangement with the swinging frame of the saw of a pivoted angular lever provided with a weight which acts with decreasing force as the saw advances toward the operator from the vertical line.
Swingsaws have been heretofore combined with weighted chains, levers, and other devices variously constructed and arranged, but objectionable on account of their expense, complexity, and liability to release the saw-in the event of breakage, &c. I have overcome these objections, and constructed an exceedingly cheap,dnrable,and safe swing-saw,which I have shown by trial to be entirely reliable in practical use, by combining with the swinging frame an angular lever carrying a weight, the resistance of which decreases as that of the frame increases, so that the force required to move the saw is practically uniform throughout its entire movement.
My improved swingsaw consists, essentially, of the vibrating frame A, hangers O O, angular lever D, weight E, driving-shaft F, provided with suitable pulleys, and saw-mandrel G, supporting saw H. The hangers are of any ordinary construction, the swinging frame A being supported thereon by the studs 43 i, the longitudinal axis of which corresponds with that of the driving-shaft F.
The shaft F. is supported in suitable journalboxes in the frame, and is provided with the tight and loose pulleys J J and larger pulley K, from which motion is transmitted to the pulley L on the saw-mandrel by the belt N. A suitable table, over which the saw swings,is indicated by the dotted lines 0. A handle, P, may be attached to the frame for convenience in operating the machine.
The bent arm r of the lever D is pivoted on a stud, s, to an arm, a, of the hanger O, or other suitable support, the pivotal point beinglocated at some distance below the axis on which the frame swings, and preferably in the same vertical plane. A stud or roller, 1!, attached to the frame bears against the side of the bent part r of thelever. Asthe frame swings forward toward the left hand in Fig. 1 the rollert causes the lever carrying the weight E to swing upward, as indicated by the dotted lines. When the frame hangs vertically at A, the lever and weight will occupy the positions indicated by the dotted lines D E, and at the extreme limitof the forward movement of the frame the lever and weight will be thrown upward to D E. the lever swings the greater the proportion of the weight thrown on the stud s, so that th resistance of the weight to the movement of the frame decreases as the frame is moved forward. 1
It is obvious that the swinging frame may be supported in various different manners without departing from the principle of my invention.
As represented in the drawings, the frame A is cast hollow, in one piece, in order to secure strength combined with lightness. I
I prefer to use a roller at t, to reducethe friction.
I claim- 1. The combination of the fixed brackets or hangers O, the pendulous saw-frame suspended therefrom, and the weighted lever pivoted to the bracket and acting directly on the frame to urge the same backward, as described.
2. The pendulous saw- 1 roller or projection thereon and the angular weighted lever mounted on a fixed axis above the roller and acting on the latter, as described.
JOHN CONN ELL.
Witnesses:
H. G. PHILLIPS, J. F. GORDON.
The higher
Publications (1)
Publication Number | Publication Date |
---|---|
US321192A true US321192A (en) | 1885-06-30 |
Family
ID=2390332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US321192D Expired - Lifetime US321192A (en) | John connell |
Country Status (1)
Country | Link |
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US (1) | US321192A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2601581A (en) * | 1950-02-15 | 1952-06-24 | Frank J Zeiler | Polishing apparatus |
-
0
- US US321192D patent/US321192A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2601581A (en) * | 1950-02-15 | 1952-06-24 | Frank J Zeiler | Polishing apparatus |
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