US206468A - Improvement in ratchet-drills - Google Patents
Improvement in ratchet-drills Download PDFInfo
- Publication number
- US206468A US206468A US206468DA US206468A US 206468 A US206468 A US 206468A US 206468D A US206468D A US 206468DA US 206468 A US206468 A US 206468A
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- US
- United States
- Prior art keywords
- wheel
- ratchet
- improvement
- case
- drills
- 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
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- 238000005192 partition Methods 0.000 description 12
- 241000499489 Castor canadensis Species 0.000 description 2
- 206010022114 Injury Diseases 0.000 description 2
- 235000011779 Menyanthes trifoliata Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B15/00—Screwdrivers
- B25B15/02—Screwdrivers operated by rotating the handle
- B25B15/04—Screwdrivers operated by rotating the handle with ratchet action
Definitions
- My invention relates to an improvement in ratchets for operating drills; and consists of a case and two wheels, the larger of which is pivoted in bearings in the case and provided with an opening for the reception of the upper end of the drill, the smaller wheel being placed in a chamber divided by a spring-partition piece, which can be withdrawn into the handle portion of the case, so as to remove the smaller wheel from the right to the left of the case, as may be desired.
- This smaller toothed wheel which meshes with the larger wheel, also engages with teeth formed upon the sides of the chamber in which it is inclosed, as follows: ⁇ Vhen the handle is moved in one direction said smaller wheel is disengaged from one of said teeth upon one side of the chamber, by reason of which disengagement the small wheel will rotate freely; but when the handle is moved in the opposite direction the small wheel engages with the said tooth in the chamber, and thereby causes the larger ratchet-wheel to move with the handle. In the former position the small wheel is prevented by a springpartition, hereinafter more fully described, from being carried by the movement of the intermeshing large wheel to the opposite side of the chamber, where a tooth is also formed, all substantially as hereinafter more specifically described.
- Figure 1 is a top view of my improvement, representing the cap removed.
- Fig. 2' is a longitudinal section, showing it arranged on a drill.
- A is the case, provided wit-ha cap, 13, which is secured on the ease by means of screws.
- 0 represents the large wheel, which is the ratchet-wheel, and is pivoted in the case A and cap B, as shown in. Fig. 2, and provided with an opening for the reception of the upper end of the drill.
- D is the small wheel, and meshes into the larger wheel and plays loosely in the chamber a.
- the side walls of the chamber 6, at f, are provided with recesses corresponding to the form of the teeth of the smaller wheel, so that in giving the ratchet a reciprocating movement the teeth will catch in said recesses and lock the ratchet-wheel O.
- the chamber 6 is divided into two compartments by a spring partition piece, g, which is placed in a recess made in the handle part of the case and held in position through the medium of springs h t, the springi keeping the small wheel D in mesh with the large wheel C.
- the partition is drawn back into the handle part of the case A, and the large wheel rotated either by turning the drill or moving the case.
- ratchet-drill By constructing a ratchet-drill as hereinbefore described the several parts may be duplicated in case of injury to any one of the parts with a trifling cost, and the ratchet can be made with facility and cheapness.
- the toothed wheel 0 and smaller toothed wheel D arranged to intermesh therewith, in combination with the teeth f of the casin g and partition 9, substantially as shown and described.
Description
J. D. MOAULIS. Ratchet-Drill.
No. 206,468. Patented July-30, 1878.
N.FETERS. PflOTO-IJTHOGRAPHER. WASH NGTON D C UNITED STATES PATENT QFFIGE.
JAMES D. MGAULIS, OF BEAVER FALLS, PENNSYLVANIA, ASSIGNOR OF TVVO-THIRDS HIS RIGHT TO W. S. KERNOHAN, OF, MINERAL RIDGE, OHIO, AND. J. IV. FORBES, OF BEAVER FALLS, PENNSYLVANIA.
IMPROVEMENT IN RATCHET-DRILLS.
Specification forming part of Letters Patent No. 206,468, dated July 30, 1878; application filled May 22, 1878.
To all whom it may concern:
Be it known that I, JAMES D. MoAULIs, of Beaver Falls, in the county of Beaver and State of Pennsylvania, have invented a new and useful Improvement in Ratchets; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.
My invention relates to an improvement in ratchets for operating drills; and consists of a case and two wheels, the larger of which is pivoted in bearings in the case and provided with an opening for the reception of the upper end of the drill, the smaller wheel being placed in a chamber divided by a spring-partition piece, which can be withdrawn into the handle portion of the case, so as to remove the smaller wheel from the right to the left of the case, as may be desired. This smaller toothed wheel, which meshes with the larger wheel, also engages with teeth formed upon the sides of the chamber in which it is inclosed, as follows: \Vhen the handle is moved in one direction said smaller wheel is disengaged from one of said teeth upon one side of the chamber, by reason of which disengagement the small wheel will rotate freely; but when the handle is moved in the opposite direction the small wheel engages with the said tooth in the chamber, and thereby causes the larger ratchet-wheel to move with the handle. In the former position the small wheel is prevented by a springpartition, hereinafter more fully described, from being carried by the movement of the intermeshing large wheel to the opposite side of the chamber, where a tooth is also formed, all substantially as hereinafter more specifically described.
To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.
In the accompanying drawings, which form part of my specification, Figure 1 is a top view of my improvement, representing the cap removed. Fig. 2'is a longitudinal section, showing it arranged on a drill.
In the drawings, A is the case, provided wit-ha cap, 13, which is secured on the ease by means of screws. 0 represents the large wheel, which is the ratchet-wheel, and is pivoted in the case A and cap B, as shown in. Fig. 2, and provided with an opening for the reception of the upper end of the drill. D is the small wheel, and meshes into the larger wheel and plays loosely in the chamber a. The side walls of the chamber 6, at f, are provided with recesses corresponding to the form of the teeth of the smaller wheel, so that in giving the ratchet a reciprocating movement the teeth will catch in said recesses and lock the ratchet-wheel O. The chamber 6 is divided into two compartments by a spring partition piece, g, which is placed in a recess made in the handle part of the case and held in position through the medium of springs h t, the springi keeping the small wheel D in mesh with the large wheel C.
If the operator desires to change the small wheel to either side of the spring-partition g, the partition is drawn back into the handle part of the case A, and the large wheel rotated either by turning the drill or moving the case.
By constructing a ratchet-drill as hereinbefore described the several parts may be duplicated in case of injury to any one of the parts with a trifling cost, and the ratchet can be made with facility and cheapness.
Having thus described my improvement, what I claim, and desire to secure by Letters Patent, is
1. In a ratchet for operating drills in which the upper end of the drill is secured in a ratchet-wheel, the toothed wheel 0 and smaller toothed wheel D arranged to intermesh therewith, in combination with the teeth f of the casin g and partition 9, substantially as shown and described.
2. In combination with the herein-described toothed wheel 0, smaller intermeshin g toothed wheel D, and case A, with teeth f upon the interior of the chamber which confines the smaller wheel, the partition g, with springs h and i, constructed substantially as and for the purposes herein shown and described.
JAMES D. MCAULIS.
Witnesses:
R. G. FORBES, J B. Dorms.
Publications (1)
Publication Number | Publication Date |
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US206468A true US206468A (en) | 1878-07-30 |
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US206468D Expired - Lifetime US206468A (en) | Improvement in ratchet-drills |
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