US1839805A - Tool - Google Patents

Description

Jan. 5, 1932.

P. O. SAMPSON TOOL Filed July 11, 1930 Inventor Z? 0. 4/2/11 flaw;

A llorney Patented Jan. 5, 1932 PHILLIP 0. SAMSON, F STABLIGHT, IE NNSYLVANIA.

TOOL

Application and m 11, 1980. Serial Io. mass.

The invention relates to tools for reachin pins, washers, screws or nuts in confined an dificult to reach places, such as the confined space connected with in placing and withdrawing the pins and washers of the valves in a present day automobile engine.

It is the particular scope of this invention to provide a device of this kind which is spring plunger operated and has expanding jaws adapted to be constructed by said spring plunger, said jaws being formed to grip objects of the kind alluded to of difierent shapes and types.

It is the ohjectof this invention to provide a device of this kind which is cheap to manufacture and which is highly eiiicient and attractive in operation and otherwise admirably suited for the purposes for which it is designed in a manner superior to that now known in the art.

I wish to have it'understood that I do not desire to restrict the application of this invention to the particular modification set out herein but any changes in material and construction may be resorted to within the scope of the invention.

- These and other objects, the nature of the invention, its composition and arrangement and combination of parts and the details thereof will be understood by any one acquainted with the art to which this invention relates by referring to the following description of the drawings, in which Figure 1 is a rspective view of an embodiment of my invention.

Figure 2 is a longitudinal cross section on a plane to the centerof said device.

Figure 3 is a detail of a face of one of the Figure 4 is a detail fragmentary view showmg: the aws 1n expanded position.

Referring to the drawings in detail 5 constitutes a tubular casing open at both ends provided with an interior partition 6 inter mediate its ends, and an external right angularly projecting flange 7 to act as a finger rest. I

Slidably mounted in the upper end of the tool is an operating handle 8 provided with a knob 9 and having connected to its lower edge an operating rod 10 to the lower end of which is connected a air of expanding arms 11 provided at their ree ends with gripping jaws 12. A spring 13 is disposed about the rod 10 and has its ends contacting the lower ortion of the operating'handle 8 and its ower portion engaging the partition .6 through a centralized hole Go on which, the rod 10 slides. This spring 13 normally retains the operating handle 8 and the rod 10 and the jaws and spring arms 11 in retracted position, in which position the jaws 12 coact to grip the pin, screw or other object desired to be handled. When the operating handle 8 is pressed downwardly against the action of the sprin 13 the spring arms 11 are pushed out of the lower end of the tube 5 and thereby permitted to function to spread the jaws 12 as indicated in Figure '1 and position the jaws in this way so as to receive the object to be handled by the tool.

Special attention is directed to the construction of the jaw 12. Fi re 3 is a view of a gripping face of one o the jaws showing one of the projections 14 from the face of the plate portion 15, which projections 14 function as stop members for exerting pressure upon a in or washer when inserting the same in a va ve stem or the like. The face of the plate portion 15 is flat and is provided with a longitudinal groove 16, which rovides a gripping and retaining means w on the tool is used to handle pins and the like of c lindrical cross section. v

T e operation of this tool is as follows The operating handle 8 is ressed into the tube 5 against the action 0 the spring 13 1 the casing thus forcing together the jaws 12 m a clamping action upon the object to be handled. It will be noted that the flan 7 provides a means for the finger to gri w e forcing the operating handle inwardl; with the palm of the hand or the fingers.

The jaw spring members 11 are formed of flat spring steel or the like material and the 10:

jaw members 12 formed of steel block fastened to said spring arms or integral therewith. The side view disclosed in Figure 3 is of the formation of the spring jaw.

It will be evident at this point that I have provided a device admirably suited for the purposes for which it is designed, which will produce a superior result and relates to a igh degree of convenience in performin the operation for which it is adapted, an which is simple and inexpensive in construction, attractive in form and outline, and extremely effective and simple in operation which makes it durable and not apt to get out of order.

1.- A device of the character described comprising a plain tube having slidably mount: ed therein an operating handle in one end, an operating rod connected to the end of said operating handle, an integral centrall apertured internal partition in said tube t rough which the rod passes, to act as a stop, an expanding spring engaged with said partition v and having said operating rod disposed within its coil, and operatively contacting the inner end of the 0 crating handle, to project said operating andle and its connected operating rod into extended position outwardly of said casing, said rod having at the end opposite the handle a V-shaped body of s ring materialconstituting a pair of jaws the uncture of which is apertured to receive the end of the rod which is riveted thereto. 2. As a new article of manufacture, a tool ,of the class described comprising a plain straight tube having a centrally apertured, washer-like disk across anintermediate oint of the interior thereof, and an annular ange constructed onthe exterior of the upper end portion of the tube, a straight solid cylindrical plunger slidable on the upper end of the tube and provided on its upper end with an enlargement forming a finger grip knob, an operating rod of relatively small cross section secured centrally of the end of the plunger and projected through the aperture in said disk, an expanding coil spring in the up er end portion of the tube and about said 3 r engaging said disk and'the lower end of the plunger, a jaw structure on the lower end of the rod consisting of a piece of flat s ring bar bent in the form of a V with a' attened, a ertured portion at the apex of the arms 0 the V to receive the lower end of the rod, said lower end of the rod being riveted to retain said jaw structure.

3. As a new article of manufacture, a tool of the class described comprising a plain straight tube having a centrally apertured, washer-like disk across anintermediate point of the interior thereof, and an annular flange constructed on the exterior of the u per end portion of the tube, a straightsolid cylindrical plunger slidable in the upper and the lower end of the plunger, a jaw structure on the lower end of the rod consisting of a iece of fiat spring bar bent in the form of a g with a flattened, apertured portion at the apex of the arms of the V to receive the lower end of the rod, said lower end of the rod bein riveted to retain said jaw structure, sai arms being provided on the inner faces of the outer ends with plates in the form of rectangular blocks having a uniform rectangular centrally disposed groove in their opposed faces, and a rectangular inwardly extended projection on the upper portion of each block adapted to be abutted and when abutted to space said grooved blocks parallell and form shoulders for engaging the wor 4. As a new product of manufacture, a tool of the type described, comprising a plain uniform tube havin an exterior flange near one end, and inwardly of the exterior flange an interior centrally apertured disk adapted to slidably receive a thin operating rod and abut an end of a coil spring on the operating rod outwardly of the disk and an end of a handled lunger slidably fitting into the end of the tu e contiguous to the exterior flange and connected with the operating rod, and an integral jaw structure riveted on the free end of the operating rod consisting of a fiat V- shaped spring bar having its apex flattened and apertured and passed over the end of the operating rod and riveted against a shoulder on the operating rod, each leg of the structure having a aw consistingof a rectangular plate having t e lower portion of its inward face centrally grooved and the upper portion thereof formed with a rectangular projection, the projections adapted to be abutted and parallelly space the lower portions of the aws.

In testimony whereof I afiix my signature.

- PHILLIP O. SAMPSON.

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