US1216655A

US1216655A - Crowbar.

Info

Publication number: US1216655A
Application number: US4337715A
Authority: US
Inventors: Alexander Hamilton Campbell
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-08-03
Filing date: 1915-08-03
Publication date: 1917-02-20
Anticipated expiration: 1934-02-20

Description

A. H. CAMPBELL.

CROWBAR. f APPLICATION HLED Xpefav I915.

Patnted Feb. 20,1917.

ALEXANDER HAMILTON CAMPBELL, 0 WHITE PLAINS, NEW YORK- CROWIBAR.

Specification of Letters latent.

Patented Feb. 20, 1917.

Application filed August a, 1915. Serial no. 43,377.

To all whom it may concern:

Be it known that I, ALEXANDER HAMILTON CAMPBELL, a citizen of the United States, residing in the village of White Plains, county of Westchesteiy State of NewYork, have invented certain new and useful Improvements in Improved Crowbars, of which the following is a specification.

This invention relates to in crow-bars, the object being to provide a device of this character by which means heavy rolls of paper, particularly, can be moved without the injury thereto. My improved crow bar is especially adapted for use whereby a roll of paper, or in fact any heavy body, can be readily moved.

It is under such conditions that my improved crow-bar is highly advantageous- In the accompanying drawing, which forms part of this specification, Figure 1 illustrates the manner of using my improved crow-bar; v

Fig. 2 is a sectional plan View thereof, the section being taken on ,a line 22 in Fig. 1

Fig. 3 is an enlarged perspective view of one of the crow-bar elements.

My improved crow-bar consists of a ban die 1, provided with a shoe 2 pivoted thereto as at 3, and a fulcrum frame 4 pivoted to the handle 1 as at 5. I

The shoe 2 consists of a block 2 a stop 2 and a pair of arms 2 embracing or straddling the lower end of the handle 1.

The pivot point 3 passes through the arms 2.

The fulcrum frame 4 is provided with a pair of arms-4c straddling the handle 1 at a point above the pivot point 3 of the shoe 2. The outer end 6 of the fulcrum frame fl is preferably made sharp in order that it will engage the surface. thereby causing the fulcrum frame to perform its function. 'A further element of the device consists of a spring 7 which tends to normally'hold the stop 2 oftheshoe 2, against the handle 1 as shown by full lines, Fig. 1. A heavy body, aroll ofpaper for instance, is indicated by 8.

As I preferably apply the power to the article to be moved some distance along the surface, especially a roll of paper, to prevent the paper from becoming damaged, T provide a stud 9 which keeps the shoe 2 clear of an in'iproveinent I the surface, when said shoe is positioned for use.

To move a heavy article the device will be applied as shown by full lines in Fig. 1 with the shoe 2- against the article, the handle 1 in a Vertical position and the stud 9 against the surface. After having positioned the deyice the operator places frament the point 10 and pushes down- ;lWardly, which causes the point 6 to dig into the ground, after which the handle 1 is pulled in the direction of the arrow 11,

which movement causes the shoe 2 to move in the direction of "the arrow 12, which also causes the article 8 to move. Thepivot point 5 acts as a fulcrum for the 1, the pressure beingsustained by the fulcrum frame 4. If-the article is to be moved still farther the device will be moved up to the article at its new position and the above described action will be repeated. The dotted lines 13 illustrate the position of the crow-bar parts after a shift has been made.

What I claim is:

1. A crow-bar consisting of a handle, a

shoe pivotally secured thereto and extending therefrom, a downwardly projecting stud carried by said shoe adapted to keep said shoe off the surface, and an independent ful crum frame pivotally secured to said handle. carrying 2. A crow bar consisting of a handle having a rounded lower end to contact with the ground, a shoe .pivotal'ly secured to said handle adjacent the rounded end thereof, means to keep said shoe out of contact with a foot upon the handle or lever.

the ground, and a'fulcrum also pivoted to i said handle inter-mediate said shoe and the upper end of said handle, said fulcrum extending outwardly from said handle.

3. A crow bar consisting of a handle, the lower end of which contacts with the ground, a shoe pivotally secured to said handle adjacent the lower end, and means to keep said shoe out of contact with, the ground when said crow bar is in use.

Signed at the cityof New York. N. Y., this 2nd. day of August, one thousand nine hundred and fifteen.

' ALEXANDER HAMILTON CAMPBELL.

\Vitnesses:

Fnnn F. Winss, Ronna'r 1210mm.