US230746A - Hand-drill - Google Patents
Hand-drill Download PDFInfo
- Publication number
- US230746A US230746A US230746DA US230746A US 230746 A US230746 A US 230746A US 230746D A US230746D A US 230746DA US 230746 A US230746 A US 230746A
- Authority
- US
- United States
- Prior art keywords
- drill
- shaft
- bar
- hand
- cord
- 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 4
- WXNGUMYXVIWRMY-WAIOZSTDSA-N Depressin Chemical compound C1C\C(C)=C\C(=O)CC(/C)=C/CC(=O)\C(C)=C\C2C(C)(C)C12 WXNGUMYXVIWRMY-WAIOZSTDSA-N 0.000 description 2
- 229920002873 Polyethylenimine Polymers 0.000 description 2
- 201000002372 amelogenesis imperfecta type 1G Diseases 0.000 description 2
- 230000000881 depressing Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
- 229950003857 propizepine Drugs 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/025—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a friction shaft
-
- 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
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
Definitions
- the figure in the drawing is a side elevation of my improved hand-drill.
- My invention relates to an improvement in hand-drills; and it consists in the features of construction hereinafter described, and pertainularly pointed out in the claim.
- the shaft to which the drill is secured is provided with a balance-wheel, and upon this shaft is loosely mounted a bar in which the shaft has a rotary movement.
- a cord passes from the upper end of this drill-shaft to the outer ends of the said bar.
- a coiled spring, F is arranged around the shaft A, between the barD and the balance-wheel 0, one end of the spring being connected with the bar and the remaining end thereof with the wheel.
- either the said bar or the shaft is rotated until the cord is wound upon the drill-shaft, which operation raises the horizontal bar.
- the cord will he unwound from the drill-shaft, which untwisting of the cord will rotate the shaft, and consequently effect the rotation of the drill and the unwinding of the spring.
- the momentum of the balance-wheel and the retractile power of the spring will cause a continuance of the rotary movement of the drillshaft, thus again winding the cord upon the said shaft.
- the drillshaft will be rotated in. a reverse direction, and so on.
- A designates the drill-shaft, and B the drill, secured August 3, 1880.
- 0 is the balancewheel upon the drill-shaft
- D is the rotary, and also sliding, bar, which is arranged to work upon the drill-shaft.
- E is a cord which passes through the upper end of the drill-shaft and connects at its ends with the ends of the bar D. If desired, however, two cords may be used, one passing from one end of the bar D to the top end of the drill-shaft, and the other cord passing from the remaining end of the said bar to the top end of the drill-shaft in a similar manner.
- F designates the coiled or spiral spring. This unwinds during the down movement of the bar, and when the bar has reached its lowest limit the retractile power of the spring insures the up movement of the bar and the rewinding of the cord upon the shaft. It also prevents the drill from jumping up during operation.
- This spring to the well-known form of mechanical movement constitutes the only novel feature of my improvement. Without this spring it will require considerable care and experience to enable a person to operate the device without frequent stops.
- a hand-drill comprising the rotary shaft A, carrying a balance-wheel, O, and the bar D, mounted loosely upon the said shaft and provided with a cord, E, conneetin g the outer ends of the bar with the upper end of the shaft, the spiral spring F, arranged around the shaft between the bar and the balancewheel, and connected at one of its ends with the bar and at its remaining end with the wheel, substantially as herein shown, and for the purpose specified.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Description
(No Model.)
-- G. B. CLARK.
Hand. Drill.
No. 230,746. I Patented Aug. 3,1880.
INVENTOR WITNES ES WNW/p M4 Q ATTORNEY N- PEI'ERS. FHOTO-UTHOGRAPNER, WASHINGYON. ll. 0.
UNITED STATES PATENT OFFICE...
GEORGE E. CLARK, OF BETHESDA, OHIO.
HAND-DRILL.
SPECIFICATION forming part of Letters Patent No. 230,746, dated Application filed Mareh13,1880. (No model.)
To all whom it may concern:
Be it known that I, GEORGE B. CLARK, of Bethesda, in the county of Belmont and State of Ohio, have invented certain new and useful Improvements in Hand-Drills; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing, making a part of this specification, and to the letters and figures of reference marked thereon.
The figure in the drawing is a side elevation of my improved hand-drill.
My invention relates to an improvement in hand-drills; and it consists in the features of construction hereinafter described, and partieularly pointed out in the claim.
The shaft to which the drill is secured is provided with a balance-wheel, and upon this shaft is loosely mounted a bar in which the shaft has a rotary movement. A cord passes from the upper end of this drill-shaft to the outer ends of the said bar. A coiled spring, F, is arranged around the shaft A, between the barD and the balance-wheel 0, one end of the spring being connected with the bar and the remaining end thereof with the wheel.
To operate the drill, either the said bar or the shaft is rotated until the cord is wound upon the drill-shaft, which operation raises the horizontal bar. By now rapidly depressin g the horizontal bar the cord will he unwound from the drill-shaft, which untwisting of the cord will rotate the shaft, and consequently effect the rotation of the drill and the unwinding of the spring. When the cord is unwound the momentum of the balance-wheel and the retractile power of the spring will cause a continuance of the rotary movement of the drillshaft, thus again winding the cord upon the said shaft. By now depressing the horizontal bar, as before, the drillshaft will be rotated in. a reverse direction, and so on.
Referring by letter to the drawing, A designates the drill-shaft, and B the drill, secured August 3, 1880.
thereto in any suitable way. 0 is the balancewheel upon the drill-shaft, and D is the rotary, and also sliding, bar, which is arranged to work upon the drill-shaft.
E is a cord which passes through the upper end of the drill-shaft and connects at its ends with the ends of the bar D. If desired, however, two cords may be used, one passing from one end of the bar D to the top end of the drill-shaft, and the other cord passing from the remaining end of the said bar to the top end of the drill-shaft in a similar manner.
F designates the coiled or spiral spring. This unwinds during the down movement of the bar, and when the bar has reached its lowest limit the retractile power of the spring insures the up movement of the bar and the rewinding of the cord upon the shaft. It also prevents the drill from jumping up during operation. The applicationof this spring to the well-known form of mechanical movement constitutes the only novel feature of my improvement. Without this spring it will require considerable care and experience to enable a person to operate the device without frequent stops.
What I claim is In a hand-drill comprising the rotary shaft A, carrying a balance-wheel, O, and the bar D, mounted loosely upon the said shaft and provided with a cord, E, conneetin g the outer ends of the bar with the upper end of the shaft, the spiral spring F, arranged around the shaft between the bar and the balancewheel, and connected at one of its ends with the bar and at its remaining end with the wheel, substantially as herein shown, and for the purpose specified.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
GEORGE B. CLARK.
Witnesses:
J OHN J. HESKETT, O. A. DOUDELL.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US230746A true US230746A (en) | 1880-08-03 |
Family
ID=2300121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US230746D Expired - Lifetime US230746A (en) | Hand-drill |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US230746A (en) |
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0
- US US230746D patent/US230746A/en not_active Expired - Lifetime
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