US903709A - Pocket-knife. - Google Patents

Description

R. L. GUTHRIE.

POCKET KNIFE.

APPLIQATION FILED MAIL-11, 1908.

Patented Nov. 10,1908.

2 SHEETS-SHEET 2.

JZ a Q w 9 m my W W a 6 v V1 H5 6 0 fl Y WITNESSES A TTOHNEYS- tinrrnn stra ns PATENT OFFICE.

noses/r L. GUTHRIE, 'oF SKAGWAY, DISTRICT oF-ALA'sKA.

iOCICE'If-KNIEE.

Specification of LetterslPatent.

' Patented Nov. 10. 1908.

Application filed March 11, 1908. Serial No. 420,446.

To all w/Lom it may concern:-

Be it known that I, ROBERT L. Gro'rrinre,

a citizen of the United States, and a resident of Skagway, in the District of Alaska,

have invented an Improvement in Pocket- Knives, of-which the following is a full, clear, and exact description. The invention relatesto pocket knives, and its object is to provide a. new and improved handle for interchangeablyholding all sorts of knife blades,

screw drivers, manicure implements, etc., and arranged to permit convenient and quick removal of a tool and the insertion of another. 1 1

The invention consists of novel features and parts and combinations ofthe same,

which will be more fully described herein-'' blades; Fig. 3 is an enlargedtransverse see- I tion of the improvement on the line 33 of Fig. 1; Fig. 4 is a similar view of the same on the line l--4: of Fig. 1; Fig. 5 is a cross sectionof a modified form of the improvement, taken 011 the line 5-5 of Fig. 6;"Fig.

6 is a side elevation of the same, parts being in section; F 1g. 7 1s ajsrde elevatlon of a modified form of the improvement, parts being broken out; Fig. 8 1s a similar view of another modified form. of the improvement, parts being broken out, and Fig. .9 is an enlarged cross section of the improvement shown in Fig. 7 the section being on the line 99 of Fig. 7.

The handle'A, as illustrated in Figs. 1, 2 and 3, is provided near each end with a removable pivot B, on which is mounted to swing the heel G of a tool C, in the form of a-knit'eblade or other implement pressed on at the heel by the free end of a spring or springs D attached to the handle A in the usual manner. The spring or springs D are provided with transverse apertures D adapted to at the time the free end of the s ring D is raised by the heel C of the tool as shown in Fig. 1, that is, when the tool C has been swung into a half open position and stands be engaged by a pin or key E.

at right angles'to' the handle A, ts indicated in Fig. 1. Now when the free end of the spring D is raised them its opening D. is

above the back of th'e ha'ndle A, and consequently when-thepin or key'E is now passed through the hole D then the pinor key rests on the back of the handle A and thus holds. the spring' D against closing when swinging the tool G into a complete open position. Whenthe tool G is swung into the open position, then the operator can eonveniently remove the pivot B with a view' to" detach the tool C and allow the use of 'another tool constructed with a heel similar to "the one of the tool C, shown and described.

Thissecond'tool can be; placed in position on the handle and engaged by the pivot B, to allow theo ,erator to swing this tool into a right-angl die A, to engage thefree' end of the'sp position melative to the banring t D and allow the user to remove the'pin or I I I key E When thistakes place, the, tool C'is again spring-pressedandcan be used for its;

legitimate purposes.

The jpivotB is preferably in the -form of a' screw rod screwing in the handle A'and having its middle portion non-threaded for the tool .C to;' swing on, as. plainly indicated in Fig; The ends of the pivot B are both threaded to screw in the sides or. jaws of the handle A, each end hav ing}ajs lot forfthe application of'a screw. :1

'"driver, to screw the pivot in screw itfrom either end. In order to strengthen the knife handle,

place or to un use is made of asolid rivet F, adjacent to)" the pivot B and rigidly connecting the sides or jaws of the handles with each other.-

The blade C is provided with a cut-out portion G to fitthei rivetlF when the blade is clased.

As. illustrated in Figs, and the handle A is provided with transverse apertures A for the insertion of a pin or key E, ed to engage the under side of the or springs D at the time the free end thereof is raised by. the heel C of the tool C swung into a right-angled to'the handle A. Thus the free end'of the spring D is held in a raised position, to al low convenient removal of the pivot B from the handle A, witha View to detach the tool C and then replacethe latter by another tool, as previously explained.

' In the modified form'shown in Figs. 7 and 9. two knife blades H, H are fulcrumed on the same pivot I screwing in the jaws ofthe adaptspring position relative handle J, the heels H" of thejknife blades being pressed on bysprings K attached to the handle J. The-springs K can be locked when raised by the heels H, by the use of a transverse pin L inserted through registeringapertures J in the sides of the handle J and inthe division plate J The solid-rivet Nat each end of the'handle J, serves-to re inforce the handle and is adaptedto be engaged by recesses N, formed on the knife blades H. v

In the modified formillustrated in-Fig. 8, the spring 0 is locked when raised'by the heel ]E of the knifeblade P, by a'pin Q, passing through registering a ertures 1n the handle R and the said spring The handle is reinforced at each end bytlie solid rivet S,

ada ted to be engaged bya-recess I in the. kni e blade P,"wh1ch latter is mounted to swing on the screw pivot P similar'to the pivots above described.

From the foregoing it' will seen that'in all cases use is madepof a removable screw pivot, a solid reinforcing rivet and a-key or pin engaging the-handle and the spring, for holding the latteritemporarily in a raised position, to allow ,convenient removal of the tool and the replacing of the same by another-L.

In practice it prove (if advantage to,

mark .the handle and'the. interchangeable tools with corresponding characters, to allow a wide range of interchangeable tools with the same handle. e

The handle shown and described is very simpleand durable in construction, and re.-

quires but little s'killin interchanging tools of various kinds, having the same kind of heel as the one shown and described. Thus -dull knife blades can bereadily interchanged for sharppnes, and other tools, such as screw driver'shanks, may be attachedto the handle in lace of a knife blade.

- avin'g thus described my invention, I

claim as new and-desire to secure byLetters; 1 Patent:

pocket knife, comprising a handle, a

1. A blade, a springheldon the handle and ada tved to ress the said blade, and moved by t e latter into a raised positiomand independent n'ieans'fonlocking the spring in the raised position.

2, A pocket knife, comprising a tool blade, a handle having a removable pivot for. the tool: blade to swing on, a spring on the said handle and ada ted to engage andpress the heel'of the sai tool blade, the latter being adapted to raise the spring, and independent means-for holding the spring in the raised position.

3. A pocket knife, comprising a tool'blade, a-.handle .having a removable pivot for the tool blade to swing on,-a spring on the said handle and adapted to engage and press the heel of thesaid tool blade, the latter being adapted to raise the spring, and a 'pinfadapted to hold the spring in the raised position. 1-

4. A ocket knife, comprising a tool blade,

a hand ejhavingaremovable pivot for the tool bladetoswing on, a spring on the said adapted to raise the spring, and a pin for ention.

' v5. A- device of theclass described comprisinga handle, apivot, a tool mounted on the 7.05 handlearid ada ted to engage and press the heel of the sai tool blade, the latter being.

"gagement with the handle and with, the said a spring, to holdthe latter in the raised posi sald pivot, a'..spring ressing the said tool,-

and a solid rivet rigi y connectin the sides ofthe handle'wi'th each .other a jacent to the saidipivot, the said tool having a recess.

for engagin theIsaid solid. rivet when the tool is close or folded in'the handle.

6. :A device of the class described, comprising a.hand;le', a tool, .the handle. and the toolbeing provided with registering openings, and ,a pivot traversing the openings, said pivot having its ends screw threaded,

and its central portion lain for the. tool to swing u n the screw t readedendsjbeing threade into the handle. 4

'In testimonywhereof I have signed my name to this specification in the presence of

Images