US2325227A

US2325227A - Crowbar and pinch bar

Info

Publication number: US2325227A
Application number: US482133A
Authority: US
Inventors: Clarence F Chaddock
Original assignee: Individual
Current assignee: Individual
Priority date: 1943-04-07
Filing date: 1943-04-07
Publication date: 1943-07-27
Anticipated expiration: 1960-07-27

Description

July 27, 1943. c. F. CHADDOCK 2,325,227

CROWBAR AND PINCH BAR Filed April 7, 1943 A 1 Fig.2. W 'Q- INVENTOR. BY 6 I? [KM/M z a/ f k 2::

Patented July 27, 1943 UNITED STATES PATENT OFFICE CBOWBAR AND PIN OH BAR Clarence F. Chaddock, Los Angeles, Calif.

Application April 7, 1943, Serial No. 482,133

1 Claim.

This invention relates to crow-bars and pinchbars, such as are commonly used in construction, wrecking and repair work, and the main object or the invention is to provide a tool of this kind that may be adapted for use either as a conventional crow-bar having one end hooked and split at its extremity to form a nail puller, and the opposite end tapered oif angularly to form a prypoint or pinch-bar.

Another object of the invention is to provide a tool of the kind referred to, made in two parts or sections hingedly connected end to end, one of the parts being hooked, tapered and split at its free extremity to form a nail puller, and the other part being'an elongated bar, tapered and sharpened at its free working end to serve as a pry-bar or pinch-bar, and means for rigidly and releasably locking the two parts together in longitudinal alignment and thus adapted to serve as a conventional crow-bar, or by releasing the lock and swinging the hooked nail puller aside, to adapt the tool to receive hammer blows on the rear and blunted end of the pry-bar, for driving this bar to its work.

' With .the foregoing objects and advantages in view, together with such other objects and advantages as may appear in the specification, attention is directed to the accompanying drawing wherein is embodied certain preferred forms of the invention, and wherein:

Figure 1 is a side elevation of the tool, the two sections thereof being shown as supported in rigid longitudinal alignment by means of a collar or sleeve slidably positioned over the Joint of the two elements.

Figure 2 is a similar view, showing the hooked or curved nail puller section swung aside and thus exposing the blunt end of the pry-bar to the use of a hammer thereon for driving the working end of this bar to its work.

Figure 3 in a top side view of the tool as shown in Figure 1.

Figure 4 is an end view of the tool as shown in Figure 2, and looking towards the right end of that figure.

Figure 5 is a detail view in perspective on an enlarged scale of the locking sleeve or collar.

The invention comprises two parts or sections, including an elongated pry-bar 5, square in cross section as shown, having one end 6 turned angularly aside and pointed or tapered as shown at l to form a pry or pinch-bar, while the opposite or rear end is formed blunt as shown at I, and is thus adapted to receive the blows of a hammer, for driving the tool to its work. The other part or section of the tool is in the form of a hooked or curved claw 9, having a squared and forked shank ill, the forks or prongs l l of which are formed and spaced to nicely set astraddle the squared end 8 of the bar 5, and to which it is hingedly connected by means of a heavy pin l2 passed through the extremities of the forks H and the rear end 8 of the said bar. The free extremity of the claw 9 is tapered, split axially and the split ends spread apart to form the nail pulling crotch l3.

A squared sleeve or collar I4 is provided and formed to nicely fit and slide upon the shank ll) of the hooked section 9 and over the inclosed rear end 8 of the bar 5, so as to rigidly lock this bar and hook together in longitudinal alignment for use as an ordinary crow-bar or pinch-bar. The said collar I4 is dimensioned so as to engage the elements with a suitable amount of friction,'s0 as to hold the collar in place against accidental disengagement. If desired, and as shown in Figure 1, a conventional spring-set friction latch I5 may be seated in the shank l0.

It is thought that from the foregoing description, the construction and use of the tool will be fully understood. The tool with its parts rigidly aligned is adapted for use as an ordinary crowbar or pry-bar, or as a nail puller. With the nail pulling section released and moved aside, the remaining section may be used alone, and hammer blows upon the blunted end thereof will serve to effectually drive the pointed end to the work.

While I have here shown and described certain embodiments of the invention, and certain specific structural features thereof, the structures and features shown may be varied as desired, within the scope of the claim.

I claim:

In a tool of the kind described, an elongated pry-bar having one end pointed and the other end blunted to receive hammer blows, a hooked nail pulling claw having a forked shank set astraddle the blunted end of the pry-bar and pivotally pinned thereto, whereby the twoelements may be longitudinally aligned end to end. or the nail pulling claw may be swung aside, and a collar slidably mounted on the elements and adapted to slide over the Joint thereof. for holding the elements in longitudinal alignment.

CLARENCE F. CHADDOCK.