US1473072A - Wrecking tool - Google Patents

Description

Nov. 6, i923'.

s. F. ANDERSON ET AL WRECKING TOOL Filed Oct. '7. 1921 Patented Nov. 6, 1923.

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SWAN F. ANDERSON AND AXEL FARB; 0F ROCKFORD, ILLINOIS.

'WB/ECKJING TOOL.

Application filed October 7, 1921. Serial No. 506,175.

-lowing is a specication.

This invention relates to tools or implements adapted for wrecking wooden huildings and frame work of various descriptions, for opening boxes, and in general `for tearing down or dismembering any wooden structure. Y

The primary object of our invention is to provide a tool which will greatly simplify and facilitate wrecking structures of various kinds, and by means of which certain structures may be torn down with the least possible injury to the separated parts. For example, by the use of our novel tool, it is possible to remove flooring from joists and siding from uprights with practically no character injury to the flooring and siding; and to perform this operation more quickly and easily than has heretoforebeen possible with any known implement.

Another object is' to provide a tool of the described constructed in such simple manner and few partsrthat it may be produced at a comparatively low cost and will be strong and durable for the pur-` poses intended.

Other objects and attendant advantages will be appreciated by those familiar with this art the invention becomes better understood by reference to the following description when considered in connection with the accompanying drawing, in which- Figure 1 is a side elevation -of a wrecking tool embodying our invention showing its application in removing flooring from a joist;

Fig. 2 bodiment of our invention showing its application in removing siding from an upright;

Fig. 3, is an enlarged end view of the fulcrum or operated end of the tool shown in Fig. 1; and

Fig. e is a similar enlarged view of the operated end of the tool shown in Fig. 2;

In describing this invention, we have taken as an illustration its use in connection with house wrecking, although it should be understood that the principles disclosed is a side elevation of another emherein may be applied in a tool for tearing down or dismembering any kind of a structure having separable membersy joined by fastening means, such as nails. The embodiment shown in Fig. 1 comprises a relatively long handleor operating lever arm 6 formed of heavy Strap or bar iron shaped` at one end to provide a laterally extending arm 7. The lever at the juncture of the arms 6 and 7 is provided on each side with integral outstanding lugs 8, the undersurfaces of which are slightly curved asv shown in F 1, and provide a fulcrum at` each side of the lever arm 6. Upon the arrn7 is 7 pivotally mounted a thrust bar 9 which may be formed, as shown, of a single piece of bar stock bent medially upon itself at l1 so as to straddle the arm 7 and pivotally connected intermediate its ends at 12 to said.

arm.

In removing flooring from a joist as shown in Fig. 1, the tool is positioned with its operated end 7 alongside the joist to which the floor boards are secured, with one of the fulcrum lugs resting on the top of the joist and the thrust bar 9 positioned beneath the ioor boards. By swinging the lever arm 6 to the right the thrust bar 9 will be forced upwardly in a powerful thrusting action, thereby separating the floor boards from the joist. Inasmuch as the thrust bar 9 is adapted to engage more than one of the floor boards according to relative dimensions, the wrecking operation may be greatly facilitated, especially in the event that the boards are rabbeted or connected by the usual tongue and] groove. IVith a tool of this character, the'boards may be removed without injury to the tongue or tenon.

In the form shown in Fig. 2, the lever arm 18 having a laterally extending operated end 14: is equipped at its extreme end with laterally projecting fulcrum lugs 15, the furcrum surface of which is on the upper or handle side, andthe arm 14 is equipped with a thrust bar 16 pivotally mounted at 17. This tool is especially adapted for` removing siding 18 from uprights, in which case the lever arm 13 will be positioned alongside of an upright as shown in Fig. 2, with one of its fulcrum lugs lo engaged behind the upright, and by downward pressure on the lever'arm the bar 16 will be thrust outwardly against the siding boards. By reason of the leverage advantage the siding may be removed with very little downward comparatively rapid'by reason of the fact forcedupwardly to 1 w-ardly. y i p It isbelieved that the 4i'o,rjegoing conveys,

thatthe tool VWill gravitate and follow down the siding yas Ythe;boards are removed In both cases it will be observed that the thrust bar acts as an equalizer in distributk ing the pressure throughout the Width of a board or to several boards as the case may be, and that a thrust ,barV of thischaracter is,

especiallyy desir-able inthe remoif'ingof rabf betedv and grooved' boards in that the thrust bar may beV positionedto extend'across ,the joint so that'the pressure in removing the -i boards will beA equallyrdistributerl to both.

.lt i 'illalso be observed that thctool vshown in Fig". l may be used for removingV siding, suoli as shown in Fig. 2, by Working from the outsideo'tV the Wall. The operation Will beapparent by turning` the sheet otdraiving in' a counterclockivise.direction so that'the joietV shovin in Fig l is vertically disposed. In this condition the lever arm 6 must be a clear 'understanding' ot the object prefaced above, and While We have illustrated several embodiments of the invention, it should be understood that the saine is capable of greater modification and that considerable change might be made inf details of' construction Without;departingfrom the spirit and' scopeV of the invention as expressed in the appended claims.

le claim 1. A Wrecking tool comprising a. bell; `crank lever having` a relatively long operating` arm and a short operatedl arm, a yful# crumflug on each side of said lever adjacent: 1 to .the `iuncture loffsaid arms, 'andanequaL izer thrust' bar inountedgon the operated arm.

2'.' fi tool for dismembering' Wooden'structures comprising a leverhavingl av relatively thrust the bar 9: out? Y I stantially right yangular relation, a'fulcrunil barfpivotally connected intermediate itsends tothe outer end; of the shorter. lever arm and having athrust face reaching from end to end.

rt-col ofthe. character described coinpiisinga lever having a relatively long andV arshort arm in angular relation, a laterally projecting-pulcrum. lug at the juncture of.

said ar1n`s' anda thrust bar lbent medially upon itself providing` parallel members stitaddling the shorter arm of said lever and pivotazlly. .connected intermediate their ends to lthe outer end ofsaid shorterarm..v y

fl. A tool of the character, described con arms, the shorter arinhaving-a thrust-@lace substantially at rightl angles tothe major axis of the longer arni and in al plane sub-` stantially i1itersecting the fulcruni'lugsf 'Y 5. Aavrecking tool comprising yaleveijhavf ing a relatively long and a short arni in sublug integra-l with said, lever; and extending laterally frenieachsidevthereof at thejunc-V ture of said arms` andan equalizing thrust bar pifvotally connected. intermediate its and having' athrust face reaching trom end to end and disposed onits side opposite from the bearing side oi' the iulcrum lugs.

6. A Wrecking tool" comprising` :a singl'el bar lever turned at one end to provide along .operating arm and a short thrust arm andY having- -a laterally projecting fulcruin lug extending from each side at the juncture ofsaid' arms? the shorter arn'i having` anA elongated thrustiace disposed in angular rela'- Ytion tothe major axis ofthe longer lever arin in'a plane substantially interse'otingithe fulcrum lugs, and disposedonthe side of `saidshorter arm opposite from the'bearing` side' of saidfulcruni, lugs.`

swift-N i1 ANnERsoN.. Misurare, f

Vends to the outer endfoithe vshorter arm i

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