US1091791A - Ratchet-tool holder. - Google Patents

Description

JLT. BARBER.

RA'IGHBT TOOL HOLDER.

APPLIOATION FILED MAY 16, 1912.

Patented Mar. 31, 191

2 SHEETS-SHEET 1.

um/whoa 11 22%) 69 4 J. T. BARBER.

BATGHET TOOL HOLDER.

APPLICATION FILED MAY 16, 1912.

1,091,791. Patented Mar. 31, 1911 2 SHEETS-SHEET 2.

PATENT @FFTQE.

TATE

JAMES '1. BARBER, OF BROOKLYN, NEW YORK.

RATCHET-TOOL HOLDER.

To all whom it may concern Be it known that I, JAMEs T. BARBER, citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Ratchet-Tool Holders, of which the following is a specification.

My invention relates to drills and analogous devices and particularly to ratchet drills.

One object of this invention is to provide a drill Or analogous device of this character having an cscillatable handle and mecha nism whereby the oscillations of the sewer lever or handle may be translated into continuous rotary movement of the drill.

Another object is to provide a drill of this character wherein. a rotation of the drill in one direction by an oscillation of the power lever may be secured without regard to the extent of said oscillation.

Another object is to provide a drill having a handle and power lever, the handle be ing so mounted that the drill may be steadied against the twisting action of the power lever.

A further object is to provide a drill having a power lever and a handle, the handle being adjusted with relation to the power lever so that it may be steadied in operation and so that the handle may be adjusted to suit the exigencies of operation.

A still further object is to provide a very compact, simple and effective mechanism, the parts being so arranged that they may be readily taken apart and assembled or readily repaired, the drill being so designed that it may be used in places where but little room can be secured for the drill.

In the accompanying drawings: Figure 1 is a side elevation of a drill constructed in accordance with my invention; Fig. 2 is a longitudinal section of the drill shown in Fig. 1, the power lever and steadying handle being shown in elevation; Fig. 3 is a section on the line 33 of Fig. 2; Fig. 1 is a section on the line 44: of Fig. 2; Fig. 5 is a section on the line 5-5 of Fig. 2; Fig. 6 is a perspective detail view of the pawl used for holding the handle in its adjusted position; Fig. 7 is a perspective detail view of one of the pawls used in conjunction with the beveled gear ratchets; Fig. 8 is a fragmentary perspective view of one of the ratchet sleeves.

Corresponding and like parts are referred to in the following description and indi- Specification of Letters Patent.

Application filed May 18,

Patented Mar. 31, 1914.

1912. Serial No. 697,765.

cated in all the views of the drawings by the same reference characters.

111 these drawings, and referring particularly to Fig. 2, 2 designates a drill stock having a socket 3 in one end adapted to receive the many-slded head of drill 4. The drill stock is reduced for the greater portion of 1ts length and is circular in cross section and forms practically a shaft. For a portion of its length the drill stock is tubular and internally screw threaded, as at 5, to engage with the screw threads of a shank 6 having a head 7. This shank (5 constitutes a feeding devlce for the drill and when it is rotated in one direction, will force the stock and the drill outward away from the shank. The head 7 is formed with a conical extremity adapted to be engaged with any suitable abutment and is also formed with a plurality of sockets 8 for engagement by a pin or like turning device. This head 7 is many-sided for engagement with a wrench to the same effect.

Immediately surrounding the stock and keyed or pinned thereto, in any suitable manner, is a barrel 9 formed with a plurality of sockets 10 extending longitudinally of the barrel. and designed for the reception of pawls 11. These sockets are shown as two in number and as extending inward from opposite ends of the barrel 9. The pawls 11 have the form shown in Fig. 7, that is, are cylindrical in form with a socket or bore 12 for the accommodation of a coiled spring 13 whose other end bears against the inner extremity of the socket and acts to force the pawl outward. lVhile the sockets may be many-sided in form and the pawls also many-sided, so as to prevent any rotation of the pawls relative to the sockets, I have illustrated the barrel as formed with slots 14! intersecting the sockets and have shown each of the pawls as provided with a stud 15 which operates in the corresponding slot. This prevents the pawls from turning.

Surrounding the stock and disposed on each side of the barrel 9, are the sleeves 16, each carrying at its inner end the annular head 17 which is formed upon its face with. ratchet teeth 18 with which the pawls 11 coact. These sleeves 16 are loose upon the stock 2 and are free to rotate thereon. Mounted upon each of the sleeves 16 and keyed or pinned thereto, in any suitable manner, so as to rotate therewith, are the beveled gear wheels 11%). It will be seen that the beveled gears 19 are practically in onepiece with the sleeves 16 and that it may be so made, if desired. My object in making them in two pieces however, is to permit the device to be more cheaply manufactured and more easily put together and repaired.

Surrounding the stock and the beveled gears mounted thereon, is a cylindrical casing 20, shown particularly well in Fig. 1, this casing being open at its rear end for a purpose to be hereafter described and be ing provided with a screw threaded annular flange 22 projecting outward immediately opposite the beveled gears 19. Engaging this annular flange 22, is a cap 23 provided with a central bearing 24 through which passes an operating shaft 25. This operating shaft carries at its inner end a beveled gear wheel 26 which meshes with the beveled gear wheels 19. It will-be seen that the beveled gear wheels 19 are disposed at the opposite points of the diameter of the gear wheel 26 and are always in engagement with said gear wheel.

The shaft projects out beyond the cap 23 and has a many-sided extremity 27 engaged by a terminal socket 28 formed upon or carried by a power lever '29 which is shown as tubular but which may be of any suitable form. The power lever is mounted upon the shaft 27 by means of a washer 30 and screw 31 or in any other suitable manner. It will be seen now that an oscillation of the power lever 29 will cause an oscillation of the gear wheel 26, and that this will cause oscillations of the gear wheels 19. The pawls llare so arranged however, that only movements of the gear wheels 17 in one direction are communicated to the barrel 9 and thus to the drill stock. When the power lever moves in the other direction, the other pawl will engage the corresponding beveled gear wheel with the barrel. Thus oscillations of the power lever 29 cause continuous rotation of the stock 2 and drill or other tool attached thereto and it will be seen that a continuous rotation of the drill may be secured by oscillations of the power lever without regard to the amplitude of these oscillations. It will likewise be seen that a movement of the power lever in either direction causes a rotation of the drill in one direction.

It will be noted that the power lever operates parallel with the drill. It will thus have a tendency to turn or twist the stock and thus render the drill unsteady, Furthermore, in some instances, it may not be possible or desirable to use the feed shank 6 for the purpose of feeding the drill inward and under all circumstances it is best to provide a handle whereby the drill may be held steady. For this purpose, I have provided a handle 32 and also provide means whereby this handle may be inclined to any desired degree relative to the axis of the drill stock and whereby it may be shifted to any desired position around the drill stock. In order to accomplish this end, I leave the rear end of the casing 22 open and provide within this open end of the casing a ratchet wheel 33 having a marginal flange 34 at its outer end which overlaps the open end of the casing and closesthe same. The ratchet wheel is provided with teeth 35 on its periphery, and a groove 36 is cut through these teeth and into the body of the ratchet wheel so that the ratchet wheel may be held in,

place. The casing, at a plurality of points in its diameter, is provided with a small hub 37 interiorly screw threaded, through which passes a screw pin 38 which enters the groove 36. At another point in'the diameter of the casing 22, the casing is provided with an outwardly extending cylindrical socket 39 for the reception of a pawl 40,

shown in detail in Fig. 6. This pawl, it will be seen, is provided with a tooth 41 adapted to engage between the teeth 35 of the ratchet and is also provided with a centrally disposed stud 42 projecting from the tooth and engaging in said annular groove 36 and performing the same function as the pin 38 when the pawl is forced inward. The pawl is shouldered at 43 and surrounding the pawl, is a spring 44 which, at one end, abuts against the interior of the end of the extension 39 and at its other end bears against this shoulder. This spring acts to force the pawl inward so that its tooth 41 engages between the teeth 35. The pawl projects out through the extension 39 and is provided at its outer end with a head or any other suitable means, whereby it may be drawn when rotated in one direction, will draw the lugs 48 together, thus clamping the handle 32 in any adjusted position, but when rotated in the opposite direction will permit the lugs 48 to expand and the handle 49 to be adjusted.

The operation of my invention will be obvious from what has gone before. After the drill is adjusted in position, and the feeding shank 6 rotated so as to engage some firm abutment, the handle 32 is held in one hand so as to steady the drill against any twisting action and the power lever 29 is oscillated. This oscillation will cause a continuous rotation of the drill in one direction,'as before explained.

The handle 32 may be adjusted in any angular relation to the drill stock and it may be adjusted concentrically to the drill stock. Thus in some instances, the handle 32 will be immediately adjacent to the power lever 29, in other instances it may be adjusted in quartering relation thereto, while at times, if desired, it may be adjusted at right angles to the drill stock. It will be seen therefore that my drill is particularly convenient for working in places where space is relatively small and where it is diflicult to operate ordinary drills.

It will further be seen that the parts of the device may be readily disassembled to permit of repair or replacement of the parts or to permit oiling. The adjustability of the handle 82 is of great value. The small amount of movement of the power lever 29, necessary in order to operate the drill, is of particular advantage.

It will be further seen that other means for operating the driving beveled gear 26 might be used beside that of the power lever by reason of the fact that the power lever is removable and that the construction of the drill is such that a continuous rotation applied to the beveled gear 26 will act as well to cause a continuous rotation of the drill 4: as an oscillation of the handle.

Having thus described the invention, what is claimed as new is:

1. A tool holder including a stock, members loosely mounted on the stock and provided with ratchet faces, a member fixed to the stock intermediate said ratchet faces, said member being provided with springpressed pawls movable parallel with the stock to engage the ratchet faces, gear wheels carried by the first-mentioned members, a casing embracing said members and said gear wheels, a driving gear supported by the casing and meshing with the first-mentioned gear wheels, and means for rotating said driving gear to rotate said stock.

2. A tool holder including a rotatable stock, sleeves rotatably supported on the stock, ratchet members carried by the sleeves, a barrel fixed to the stock intermediate the ratchet members spring-pressed pawls carried by said barrel and movable longitudinally of the stock to engage said ratchet members, gear wheels mounted on said sleeves, a driving 'ear meshing with said gear wheels, a casing embracing said gear wheels and the members mounted on the stock, a shaft supporting said driving gear, a bearing for said shaft threaded into the casing, and means for rotating said shaft.

3. A tool holder of the character described including a stock, a casing housed in the stock, means for rotating the stock, a member closing the rear end of the casing and rotatably adjustable therein, means for holding said member in any desired rotated position, and a handle carried by said member.

4. A tool holder of the character described including a stock, a casing surrounding the stock, a toothed wheel entering the rear end of the casing and surrounding the stock, means projecting from the casing whereby the stock may be rotated, a detent carried on the rear end of the casing and engaging said member, and a handle pivotally mounted upon said member for angular adjustment.

5. A tool holder of the character described including a stock, a casing surrounding the stock, mechanism for operating the stock including a gear wheel having a shaft projecting from the casing, a power lever mounted upon said shaft and extending in a plane parallel to the plane of the stock, a ratchet wheel closing the rear end of the casing andv rotatably mounted upon the stock, a detent carried by the casing and engaging said ratchet wheel, and a handle pivotally mounted upon the ratchet Wheel for angular adjustment relative to the stock.

6. A tool holder of the character described including a stock, a casing surrounding the stock, driving mechanism for the stock including a gear wheel having a shaft projecting through the casing at right angles to the stock, a power lever connected to the shaft and extending in a plane parallel to the plane of the stock, a ratchet wheel rotatably mounted in the rear end of the casing, means for holding the ratchet wheel in place with in the casing, an outwardly shiftable detent carried by the casing and engaging said ratchet wheel to hold it in any desired adjusted position, and a handle carried by said ratchet wheel.

7. A tool holder of the character described including a stock, a power lever extending parallel to the stock, mechanism operatively connecting the power lever with the stock to cause the rotation of the stock in one direction upon an oscillation of the power lever, and a handle operatively mounted upon the stock, said handle being angular-1y adjustable with relation to the stock and rotatable around said stock.

8. A tool holder of the character described including a stock, a casing arranged on the stock, means supported by the casing for rotating the stock, and a handle rotatable about the stock and capable of angular adjustment with respect thereto.

In testimony whereof I aflix my signature in presence of two witnesses.

JAMES T. BARBER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patenta,

Washington, D. G.

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