US1756129A - Oil can for pruning shears - Google Patents

Description

April 29, 1930.

H. NISHINAKA OIL CAN FOR PRUNING SHEARS Filed April 27, 1927 INVENTOR aka/ ishin ATTO R N EY Patented Apr. 29, 1930 pairs!) STATES HIROSHI NISHINAKA, OF STGCKTON, CALIFORNIA OIL CAN FOR PRUNING SHEARS Application. filed April 27,

This invention relates to oil cans, myprincipal object being to provide a can particularly shaped and designed to be mounted onto a pruning shears so that the hinge joint 5 or pivot and the adjacent portions of the blades may be easily oiled.

In using pruning shears continuously as when trimming the vines in a large vineyard, it is essential for proper and easy operation n of the shears that the pivot and contacting blade faces shall be continuously oiled. Otherwise a tendency to binding soon delevops owing to dust and the like or moisture from the vines being cut penetrating between the necessarily close fitting surfaces. Heretofore it has been necessary to carry an oil can in'the pocket or" the operator to enable the shears to be maintained in a condition easy to operate, and to prevent the possibility of 2c the pivot or the blade snapping off when the parts freeze together, as sometimes happens.

This method of carrying a supply of oil however is very inconvenient as the oil tends to leak out of the can and considerable time is 5 consumed in the aggregate in using the same.

My improved can is adapted to be rigidly secured to the shears in such a position that upon opening the can valve the necessary amount will flow onto the desired parts of 36 the shears without any movement of the can itself being necessary. The oil can is also of such a nature as not to interfere with the movement ofthe blades or the proper grasping or" the handles by the operator.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be effective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the followingspecification and claims.

In the drawings similar characters of reference indicate corresponding parts in the 0 several views:

Fig. 1 is a side outline of a shears showing my improved oil can applied thereto.

Fig. 2 is a sectional elevation of the can detached.

Fig. 3 is a top plan view of the can show- 1927:; Serial No. 186,859.

ing the means of attaching the same onto the shears.

Fig. 41- is a fragmentary sectional elevation of the can showing a modified form of mountmg the control valve. rs;

Referring now more particularly to the characters of reference on the drawings, the pruning shears to. which the. oil can is connected is of common form, comprising opposed blades 1 overlapping each other and pivoted together by a bolt 2. or the like. The tangs 3' of the blades are fitted into diverging handies l of suitable length. The oil can comprises a long slender cone-shaped body 5 adapted to extend lengthwise of and to lie against'the inner face. of one of the handles and to be secured thereto by clamping bands 6. The body is placed so that its small or nozzle end: is disposed. adjacent the junction of the tangs with the blades, and so that oil i dripping from the nozzle will be deposited so as to flow between the contacting faces of the blades as shown in Fig. 1.

Rigidly secured onto the large end of the body is a cap 7 a portion of the periphery of 53 which preferably has a concave curvature as at 8', so. as to. follow the contour of the handle and prevent possible rotation of the can. A needle valve'projectslengthwise in the can from above the cap to. normally close 5.3) the nozzle opening. In Fig. 2* the valve 9* is shown as threaded through the hub 10 of the cap and is provided with a head '11 so that it may be turned.

In t the valve 9 is slidable through: the cap and is provided with a springl2 acting to automatically hold the valve in a closed position. In the former case the: valve is opened and closed by rotating-the same, while in the 'lfatter'instance the valve. automatically closes as above stated and is opened by pulling the same lengthwise of the can.

In order to admit air to the can so that oil may flow out through the nozzle when the valve is opened, a plate 13 is turnably mounted on the hub of the cap, said plate having an opening 14 to register with a similar opening 15 in the cap. The plate is turnable at will so as to move the opening 14 into or out of register with the cap opening by means of a finger flange 16 projecting outwardly from the plate.

7 mounted on the cap so as to have close contact therewith and to prevent the possibility of oil leaking from the opening 15 I when the plate is turned to cover said open- 1 ing and the shears are not in operative position with the cap facing downwardly. V From the foregoing description it will be readily seen that I have produced such'a ,device as will substantially fulfill the objects of the invention as-setforth herein.

l/Vhilethis specification sets forth in detailthe present and preferred construction, of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention 'as defined by. the appended claims. 7 Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent is: r

1. Means for oiling the pivot'joint of the blades of a pruning shears having substantially round handles, comprising an oil container adapted to be disposed along one of the handles and having a nozzle adapted to terminate adjacent. the contacting surfaces of the blades to the rear of but adjacent the pivot joint, means for-- clamping the container againstthe handle; and means providedon the container for preventing turning of said container relative to the handle. f '2. A structure as in claim 1, in which said last namedvmeans comprises a cap on the I outer end of the container, a portion of the.

periphery of the cap having a concave contour to conform to that of the handleand to abut thereagainst; c

3. Means for oiling the pivot joint of the blades of a pruning shears comprising an oil container adapted to extend along one of the handlesof the shears, means for clamping the container onto said handle,1 and a nozzle on the container at its inner end positioned, when the container is thus clamped against the handle, to terminate adjacent the contacting surfaces of the blades to the rear of but adjacent thepivot joint of the shears.

4. A device as in claim 3, in which the eontainer is of sharply tapered cone-shaped form from its outer to its'nozzle end and of relatively small diameter whereby to avoid interfering with the closing together of the handles of the shears V In testimony whereof Iaflix my signature. 7

" HIROSHI NISHINAKA.

The plate is

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