US1312766A - Planograpii co - Google Patents

Description

I. S. SURBAUGH.

SHOVEL, SCOOP, GLc.

APPLICATION HLED MAR. 7, 1918.

1,312,766. Patented .12,1919.

3 SH HEET 3.

UNITED s'rATEs PATENT onnion.

vJom: s. sUnBAUGH, or vmonn-Nns, INDIAA.

snovEL, sooor', 8m. w

specification of Letters Patent. Aug- 12, 1919 Appnationifiiednarcn, 19-18. serialnaaaoi. w

connections 'between the handles and blades or heads 'of such tools. f

It is the object of the invention to provide novel and improved means for .detachably eonnecting the handle and blade in su'cha manner that prying, torsional lever-age and other strains are successfully resisted, and at the same time, permitt'ing the handle and blade 'to be readily separated for replaoing either, especially the blade, should` the same become worn out or broken, thus providing for economy.

A further object of the invention is the: provision of such a connection or joint utilizing but a single securing element, thus minzimizing the cost of manufacture, and 'also enhancing the efi'iciency of the imrplement.

A still further object is the provision of.

the improvements of the nature indicated, which provide thorough rigidity ofthe tool, and enablethe parts to be readily and economically manufactured Wan'd assembled.

With the foregong and other objects in view, which will be apparent as thenature of the invention is better understood,.the invention resides in the novel construction. and arrangement of parts hereirrafter de-a scrilbed and claimed, it being understood that changes oanbe m'ade within the scope of what isclazimed without departing from the spirit of the invention. w

The invention is illustrated in the accompanying drawings, 'whereinf w Figure 1 is 'a perspective view of a shovel or scoop incorpo-rating the improvements, a portion of the handle member being broken away.

Fig. 2 is a longitudinal median section of the connection. W

Frig. 3 is an enlarged cross section on the line 3-8 of Fig. 2.

Figs. 4 and 5 are views similar to Fig. 2 showing modifications.

handle member. o

Figs. 'Zand ym'are :planV views of different forms of 'tools utiliz'ing the irnproli(ements.iV I D The shovelsor scoopsjs'hofvvn in thedraw= ings are of the pattern known in the trade Fig. 6 is a bottomview ofl a reinforced as hollow-back, 'although it is to be under- Stood thatthe 'features of 'this invention can be used'in various implements and tools for which they are suited, the linvention resembllng in some respects thehshovels, scoops, etc., shown in my' Patent No; 1,247 ,032; granted November 20, 1917,l but having 'de-` cidcd improvements thereover as hereinafter described and claimed. The structure shown in said patent requires 'several securlng elements, whereastherpresent one neces; sitates but a single secur'ing element, thus cutting down the'lcost of manufaeture and the time required for assemblage. s i' Referring lin' ldetail to that form of the inven'tion depicted in"Figs. 1, 2 and 3,l the blade for headl of the shovel or`sc0opfcomprlses a bottom havingupturnedsides and back, stamped from Sheet. metal. The back and rear end of' the bottom have an lupstroke roll2 extending forwardlyf from the rear edge of the blade, and this roll isforked or bifurcated as shown, so as' to have the forwardly divergng ribs| or prongs', 3 up'- struck from the bottomof the bladeto'fe'ffectivelyl stiffen and reinforce the :sa-me.V i

The roll or archedportion 2 provides a recess or pocket thereunder for the reception of the handle member, asl will heroinafter more fully appear, andv a transverse rod or cross member 4 extends underneath the crown of theroll near 'the rear vend thereof and its terminals extend through the side wallsof said roll andare securely' anchored thereto. This can be done in various suitable ways, and as shown, the member 4 'is in the form of' a rivet having 'the heads 5 at its ends., 'It is preferable to provide 'washers 6 underneath the heads to bear against the side 'walls of the roll and thus istribute the strains, 'and avoidthe memer equivalent means for the same purpose can be used, whichv need notH be illustrated or described'in detail. The cross memlber 4 forms a stirrup or seat `for the clamfping 4 tea-ring loose, altlioughV various walls of the roll to strengthenthe blade at this point. Said member 4 is preferably of concaved curvature from end to end so as to better withstand and take up the strains,

The handle member 7 is tubular as shown, and may be the shank proper or a sleeve or socket for the reception of a wooden shank, whichever is preferred. Said handle member 7 can be readily bent from sheet metal, and for the purposes of this invention is cut away, as at 8,,at its bottom portion and forward end, thus leaving an arched forwardlyprojecting tongue 9 at the forward end of the handle member, which is so shaped as to slip forwardly into the recess or cavity of the roll 2 over the member 4 and thus snugly fit the crown of the roll with the basal end of the tongue or portion 9 over said member 4. The tongue 9 is preferably strengthened by a cross tie or stay 10 having its terminals riveted or otherwise secured to the edge portions of the tongue 9, preferably near the forward end thereof. This serves to hold the tongue in shape, and if desired, the edge portions ofthe tongue 9 can be spread apart, as seen in Fig. 3, so as to snugly fit against the side walls of the roll 2.

The means for clamping or looking the handle member in the roll embodies a lock lever 11 within the forward end portion of the handle member, and having its rear end mounted pivotally upon a transverse pivot 12 engaged through the sides of the handle member in rear of the tongue 9. This lock lever 11 projects forwardly underneath the tongue 9, and is of a size to pass over the tie member 4 when the tongue 9 is introduced into the roll 2, said. lever having a lower transverse groove 13 to engage and fit on the member 4 Vwhen the handle member is in place. This groove 13v is between the ends of the lever, and a clamping screw 14 is threadedv4 upwardly through the lever 11 near its free end or between said end and the groove 13, so that the upper end or tip of the screw bears upwardly against the crown of the tongue 9.

After the blade and. handle member are brought together, the screw 14 can be readily threaded through the lever, and when said screw is tightened it will result in the parts being securely and rigidly clamped together and locked. This is due to the fact that the lever 11 seats on the member 4 and the screw 14 being forced upwardly will press the tongue. 9 tightly up against the crown of the roll 2, and the groove 13 engaging the member 4 looks the handle member in the roll so that it can not be accidentally withdrawn. The connection thus provided fulfils all of the requirements, and uses but a single securing element., When the screw 14. is removed, the handle member and blade can be readily pulled apart or separated, for replacing either of them when broken or worn out. The member 4 stands theprying strain of the implement, and also strengthens the blade materially or stifens it to stand the torsional strain, as well as the pressure exerted between it and the roll for holding the handle member in place without any loose play whatever.

Fig. 4illustrates a modification, in that the screw is replaced by a wedge 14' driven rearwardly between the lever 11 and tongue 9 to accomplish the same purpose, becz'xuse said wedge forces the lever down on the member 4 and forces the tongue 9 against. the crown ofV the roll. Su'ch an arrangement is a desirable one, it being noted that the wedge contacts with the tongue 9 for a considerable portion of its length, whereas the screw 14 has but a single point of contact with the tongue, so that the. wedge dis tributes the pressure better.

F ig. 5 shows a further modification, in which both the lever and screw are dispensed with, the handle member 7 having a groove or notch 13' at the basal end of the tongue or portion 9 to engage on the member 4, and a wedge 14' is driven forwardly between the crowns of the roll :2 and tong 2;ueV 9 thereby clamping the handle member itself on the member l4. This is the most simple, although possibly' not the most desirable form of those shown. Each of'them, as will be noted, includes expansible means for the forward portion of the handlemember to clamp it between thev tie member 4 and roll 2, which, generally speaking, is the essence of the invention.

Fig. 6 illustrates a reinforced hand-le member 7. A reinforcement 15 is fitted Within the forward end portion of the han'- dle member 7 a'nd tongue 9, and is shaped to conform thereto. This reinforcing member 15 strengthens and stiffens the handle member where the greatest strains are.

As shown in F ig. 7, the invention is used with a plain roll 2, the blade having sti'lfening ribs 16 at the opposite sides of said roll in lieu of the fork. Fig. S shows the invention used with a different style of blade having the forkedy roll. These figures depict only a few of the many applications of the present improvements as covered by' the following claims' 1 Having thus described' the invention', what is claimed as new is 1. A tool embodying a blade liavingla roll with a seat thereunder connected rigidly with both sides of the roll, a handle member to enter freely between said? roll and'fseat,

and means operable after the handle member is-moved between said roll vand seat for clamping said handle member therebetweeir andoperable for" releasing the `handle-member for withdrawal. I

2. A tool embodying a blade having a roll with 'a seat thereunder connected rigidly with both vsides of the roll, a handle member insertible freely between said roll and seat,

and means to bear on said seat and operable by hand after the handle member is inserted between'said, roll and seat for clamping the handle member against said roll, and also operable to release said handle member for withdrawal.

3. A tool blade having a roll, with a seat thereunder, a handle member to enter freely between said roll'and seat, and means for engaging one of the parts of the blade and operable for clamping the handle member between the roll and seat against one of them.

4. A tool embodying a blade having a roll with a seat thereunder, a handle member between said roll and seat, and expansible means for clamping the handle member between the roll and seat.

5. A tool embodying a blade having a roll with a seat thereunder, a tubular handle member extending between said roll and seat, and means within the handle member bearing on said seat for clamping said member against the roll.

6. A tool embodying` a blade having a roll with a seat therennder, a handle member extending between the roll and seat, a member bearing on the seat, and means between said members for forcing them, one againstthe seat and the other against the roll.

7. A tool embodying a blade having a roll with a seat thereunder, a tubular handle member extended between said roll and seat, a member within the handle member bearing on the seat, and means between said members for forcing them, one against the seat and the other against the roll.

8. A tool embodying a blade having a roll with a seat thereunder, a handle member eX- tending between said roll and seat, a lock member connected to the handle member and bearing on and engaging' the seat to prevent longitudinal movement, and means for forcing said members, one against the seat and the other against the roll.

9. A tool embodying a blade having a roll with a seat thereunder, a tubular handle member extending between said roll and seat, a lock member within and connected to the handle member and arranged to bear on and engage the seat and prevent longitudinal movement, and means for forcing said members, one against the seat and the other against the roll.

10. A tool embodying a blade having a roll with a seat thereunder, a handle member extending between said roll and seat, a lock lever pivoted to the handle member to bear on the seat, and means between saidlever and handle member lfor forcing them against the seat and roll, respectively.

11. A tool embodying a blade having a roll with a seat thereunder, a'tubular handle member extending between said seat and roll, a lock lever pivoted within the handle member and arranged to bear on said seat, and means between said lever and member for forcing them against said seat and roll, respectively.

12. A tool embodying a blade having a roll, a cross tie member having its ends connected rigidly to the sides of the roll, a handle memberinsertible freely between the roll and tie member, and means operable by hand for clamping the handle member between the roll and tie member.

,1.3. A tool embodying a blade having a roll, a .cross tie member connecting. the sides thereof, a handle member extending between said roll andmember, and eXpansible means for -clagmplng said handle member between the roll and member. i

14. A tool embodying a blade having a roll, a cross tie member connecting the sides thereof and rigid therewith, a handle member eXtending between said tie member and roll, and means bearing on said tie member and operable` for pressing the handle member against the roll.

15. A tool embodying a blade having a roll, a cross tie member connecting the sides thereof, a handle member extending between the tie member and roll, a member bearing on the tie member, and means between the third named and handle members for forcing them, one against the' tie member and the other against the roll.

16. A tool embodying a blade having a roll, a cross tie member connecting the sides thereof, a tubular handle member eX- tending between said roll and tie member, a member within the handle member bearing on the tie member, and means between the third named and handle members for forcing them, one against the tie member and the other against the roll.

17. A tool embodying a blade having a roll, a' cross tie member connecting the sides thereof, a handle member extending between the tie member and roll, a lock member connected to the handle member and engaging` over the tie member, and means for forcing said lock and handle members against the tie member and roll, respectively.

18. A tool embodying a blade having a,

against the tie member and roll, respectively.

19. A tool embodying a blade having a roll, a cross tie member connecting the sides thereof, a' tubnlar handle member extending between said tie member and roll, a lock lever within and pivotally connected to the handle member and having a groove to engage over the tie member, and means between the lever and handle member for forcing them against the tie member and roll, respectively.

21. A tool embodying a blade having a roll, a cross tie member connecting the sides thereof, a handle member out awa3v at one end to provide a tongue to pass over the tie member under the roll, and means between said tongue and tie member for forcing the tongue up against the roll.

Lam/766 ,n tool embodying a blade lhaving a roll, cross tie member connecting the sides thereof, la handlo member cut away at one end to provide a tongue to `pass over said tie member under the roll, a lockmember connected to the handle member andextending under the tongue to engage over the tie member, and means for forcing said lock member and tongue against the tie member and roll, respectively. 1

23. A tool embodying a blade having a roll, a cross tie member connecting the sides thereof, a handle member cut away at its forward end and forming -a tongue to pass over the tie .member under the roll, a lock lever pivoted within the llandle member, extendzing forwardly .under :the tongue and having a groove to engage over the tie member, and means between said lever and tongue fol` forcing them against the ti.a member and roll, respectively.

In testimony whereof hereunto set mv hand this 5th day of March, 1918.

JOHN S. SURBAUGH Copies of this patent may be obtained for five cents each, .b'y addressing the Commissioner of Patents,

' Washington, D. O."

Images