US1911287A - Post puller - Google Patents

Post puller Download PDF

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Publication number
US1911287A
US1911287A US443784A US44378430A US1911287A US 1911287 A US1911287 A US 1911287A US 443784 A US443784 A US 443784A US 44378430 A US44378430 A US 44378430A US 1911287 A US1911287 A US 1911287A
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Prior art keywords
lever
work
pockets
fulcrum
portion
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Expired - Lifetime
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US443784A
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Pladson Edgar
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Pladson Edgar
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Priority to US443784A priority Critical patent/US1911287A/en
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Publication of US1911287A publication Critical patent/US1911287A/en
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Application status is Expired - Lifetime legal-status Critical

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F15/00Crowbars or levers

Description

May 30, 1933. PLADSQN 7 1,911,287

POST FULLER Filed April 12, 1930 .Z'aarfladsarz,

INVENTOR WITNES:

ATTORNEY Patented May 30, 1933 UNITED STATES EDGAR. PLAnson, orrtrn rgisficnrsen' y POST PULLER Application filed April 12,

This invention relates to certain new and for stumps, posts and the like.

One of the principal objects of the invention consists of a fulcrum lever designed for biting engagement with its work in all stages of the lifting action thereof.

Another object of the invention consists of means for holding the fulcrum lever in position for use.

'15 disposed as to provide a floating fulcrum for the lever whereby the latter will follow the work in the event the latter should deviate from the intended direction of lift.

With the above and other objects in view,

' the invention further consists of the following novel features and details of construction, to be hereinafter more fullydescribed. illustrated in the accompanying drawing and pointed out in the appended claims.

In the drawing:

Figure 1. is a side elevation of the invention as applied for use. 1

Figure 2 is a top plan view thereof.

Figure 3 is a rear elevation of the invention with the operating lever in section.

Referring to the drawing in detail wherein like characters of reference denote corresponding parts, the reference character 10 indicates generally a foot or base plate having the laterally projecting attaching flanges 11 of spaced parallel upstanding plate members 12 secured thereto. A fastening element, such as indicated at 13, horizontally disposed between and having connection with v the spaced plate members 12 carries a spacing thimble 14 upon that portion thereof disposed between the adjacent faces of the plate members 12 whereby said thimble will coact with the attaching flanges 11 in the preservation of a space of equal width throughout the tion about to be described.

with thefwork. The instaiitpost pullerI-will r 1930. "Serial, no; 443,754.

"entire length of the form of support. "It will, i useful lmprovements in pullers or extricat ors of course, be obvious that anyssuitable an} chorage, not shown, may be employedfor rig- ;i ,lly securing the plate members 12 in adjacent relation with respect to the article to be extracted,and the illustration of such an chorage is, therefore, not (deemed necessary. The plate members 12 are provided with aligned pocket portions upon theniner side edgesthereof generally. designated as at 15-55 having the forward walls 16 outwardly and downwardly inclined for communication w1tl1 a sem -circular rearwardly extending WZIll POI'tlOII 17 wh ch forms one slde ofa wall portion lSextendingwell within the entrance 360 for pocket portions 15 to restrict v not only the entrance of the extremities of acrossor fulcrum pin 12,;but also to: prevent accidental displacement thereof during thelifting ac- '[The lifting lever,- alluded toinfthe foregoing and generally designated as-at L', is-

:provided with' a straight portion gpro jected within and through the space preserved between the plat emembers l2- and outv1 wardly.fitherebeyond for appreciable Ydistance s, in both' directions: ,An upwardly, rearwardly and obliquely inclined portion 20 for-modes a continuation of the straight portion 19 termmateslto provide a hand engag 7.

ing" portion 21 nearly following the same plane. of the straight portion 19. The for ward or outwardly projecting end of the :lever L is of arcuate shape and toothed as at'21 for biting engagement with its work whether13 thelatter be steel or wooden posts. Due tothe specific "configuration or contour of the pockets 15,th'e fulcrum. pins-19, are allowed to shift laterally within the pockets during the operation of the fulcrum'lever as the latter is shifted with the work, whereby said lever will move with the work to preventthe'disengagement thereof from the work, and: to

retain the ar cu a'te shapedfend 21 ofthele'ver portions will remain engaged with the work through the entire swing of the lever. As a means of convenience in the lifting action and to preserve biting engagement of the toothed portions 21 with the immediate surface of the work to be elevated or otherwise extricated, I provide a chain 22 having swivel connection at one end with the lever L and detachable connection at its other end with an adjusting hook 23. It is obviously apparent that thecross pin 19 is to be carried by the lever L. r g

' As will be noted from the illustration in Figure 1 of the drawing, the chain 22, toothed portions 21, cross pin 19 and the particular shaped pockets 15 will co'act in the compensating for possible deviation of the work being lifted by following the inclination thereof whereby the toothed portions 21 will remain in biting engagement therewith. It is further noted that the chain connection 22 will gifadua-lly tighten up as the angularity thereof with respect to its initial position is changed or otherwise altered whereby the teeth 21 will be more deeply embedded in the work'to obviate slipping or accidental displacement.

' The invention is susceptible of various changes in its form, proportions and minor details of construction, and the right is herein reserved to make 'suchchanges as properly fall within the scope of the appended claims.

Having described the invention, what is claimed is:

"1. A jaokconstruction comprising a base, spaced parallel standards rising from said base, each of said standards having provided in one of the vertical edges thereof a plurality of pockets, the'pockets'of {the standards aligning horizontally with one another, the walls of each pocket terminating in a semicircular portion, a fulcrum lever, a cross pin carried by'said lever and loosely journaled in the semi-circular portion of said pockets for allowing 'the'cross pin to shift in the pockets, whereby'said lever will move with the work, and an arcuate-shaped tooth portionformed onone endoffsaid lever.

2. A jack construction comprising-spaced parallels'tandards having aligned pocket portions terminating in a semicircular portion, a

fulcrum 'leve'r between said standards, and

provided with -a cross pinloosely fj'ournaled withinthe semi-circular portions of the pocket, and an arcuate-shaped tooth "portion formed on one end of said lever, the diameter 'of the semi-circular portion of the pockets be-

US443784A 1930-04-12 1930-04-12 Post puller Expired - Lifetime US1911287A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811388A (en) * 1972-08-15 1974-05-21 W Campbell Sub soil irrigator and tree lift
US5290013A (en) * 1993-02-05 1994-03-01 Dearman Timothy Charles Spading fork
US5464192A (en) * 1994-08-26 1995-11-07 Burnham; Dale A. High speed manual post puller
US6302376B1 (en) * 1999-04-05 2001-10-16 John Williams Self-translating stake puller
US6752382B2 (en) * 2002-11-13 2004-06-22 David A. Barto Concrete form puller
US20040207120A1 (en) * 2001-12-07 2004-10-21 Form Puller Tool Co., Inc. Method and apparatus for removing modular forms
US20090242859A1 (en) * 2006-03-30 2009-10-01 University Of Utah Research Foundation Probe bar remover
GB2525720A (en) * 2014-02-26 2015-11-04 Roger Doherty A multipurpose device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811388A (en) * 1972-08-15 1974-05-21 W Campbell Sub soil irrigator and tree lift
US5290013A (en) * 1993-02-05 1994-03-01 Dearman Timothy Charles Spading fork
US5464192A (en) * 1994-08-26 1995-11-07 Burnham; Dale A. High speed manual post puller
US6302376B1 (en) * 1999-04-05 2001-10-16 John Williams Self-translating stake puller
US20040207120A1 (en) * 2001-12-07 2004-10-21 Form Puller Tool Co., Inc. Method and apparatus for removing modular forms
US6752382B2 (en) * 2002-11-13 2004-06-22 David A. Barto Concrete form puller
US20090242859A1 (en) * 2006-03-30 2009-10-01 University Of Utah Research Foundation Probe bar remover
US8413959B2 (en) * 2006-03-30 2013-04-09 University Of Utah Research Foundation Probe bar remover
GB2525720A (en) * 2014-02-26 2015-11-04 Roger Doherty A multipurpose device
GB2525720B (en) * 2014-02-26 2018-06-06 Doherty Roger A multipurpose device

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