US2450697A - Pocketknife - Google Patents

Description

Oct. 5, 1948. A. F. TEIGEN I POCKET KNIFE Filed .July 15} 1947 IN VEN TOR. Q E T6196!) BY Austf'b M/ Patented Oct. 5, 1948 UNITED PiAiTENT owrce PUGKETKNIEET' AilSfiIlzE. Teigen, Moorh ead; I Ap neanenomy15%1947, Serial Ne;- 7603984 s Claims-a (01. 30-155) The-invention rela'tesxto a.novel'fknifegintended" primarily for carrying within. the pocket"; of f a; garment and readily: useable-fori opening enVeL- lopesor for: cutting news items -andr the;-=like.-zfrom=. papers and magazines: The objectofzthe invene tion is -to1provide an exceptionally;.simple.zand insexpensive. construction; which. maybe expedie tiouslymanufactured: and profitably; soldiati' a: reasonable. price, may be.- readily";carriediintaz pocket, pocketbook .OIfthe like;.without*-.danger of. 101;

the blade cutting ;any;p.arts thereof; .orradjaoent contents; of the pocket: or thealike, and: may; 138::

quickly conditioned :for i use. when required;

Figure 1 of the;accompanyingi drawingisapelte I spective view showing; the knife inu readinessefor; 15.;

understanding, however, that'with-in-rtheiscopeeofsz 303* the invention as claimedgminor.variationssmay; be made. Itmayalsohere be stated that while the knife may be used in any of various positions, it has been describedassif. the element-herein referred to as a top plate were always above the member which has been termed a bottom plate, this being done to facilitate description.

The above-mentioned bottom plate is denoted at III, said plate being formed from an elongated blank of thin sheet metal which is preferably narrowed toward its front end. This front end is turned obliquely downward as indicated at II, and the rear end of the plate I is bent upwardly and inwardly to provide an overlying lug I2. Ad jaoent the bight joinin this lug with the body portion of the plate ID, the latter is provided with an upwardly pressed detent I3. About centrally between its ends, plate In is formed with a short longitudinal slot I4.

An elongated top plate I5, narrower than the bottom plate It], overlies'the latter. The front end I6 of this top plate is turned obliquely upward at It, into forwardly diverging relation with the front end II of the bottom plate I0, and the rear end I! of said top plate I underlies the lug :?iplate I 5 overliess thiss' lug; The: :rear end. of thee plate I I 5: is formedwith a:notch-25- which receives-y.

the aboveedesoribedz detent- I 3 (see .4) whent I 2-.when saith-plated 5:=is-:. in zitssnormal; position; in.

readinessyforluse asirazknifat-as seenainaFigsrl and:

4., The :plate:;I- 5- :is. provided .Iwithdownwardly. and. irntrard-lyr-benttlongitudinal fianges. I Rawhiclrgena tend: from its rear end to. points: somewhat; im

advanceof: its :centralrportion-,-: and; said central-f. portion :is. formed with an'popening I 9 scorn-monieeating; with; the slot, I 4.1 The;flanges:il 8::embraoer the -,rear;;portion oi fay-blade :20 which is interposed: between the-.top and bottom ;p1a-tes-;I 5-1andglll thee frontaendrZI yof saidb-lade being,idisppsedsbetween: the forwardly; diverging .plate-yendsi I I "and; I 6.1 Therea-r end, ofrthe; blade':.-20-?is.;fo1med withzan'i:

opening; 22- ali-ned-i with; the.- opening; lil and;' a3; pivot bolt. 23; extends .thr.ough=.thesempenings I9;:--

and 22;;and.through; the.slot I4; aid: pivot bolt; preferably; haying a knurled-J or -similarly;rough+ enecl nut-.2.4-.- Theslot .l4- permits-ttheubolt 23;;thev; plate I 5:-and'.the= blade-.2 0:110 haverlimited T'IOXlQiI-B gptudinal' sliding i movement-r uponthe-.bottomiplatew I il-rand alsoeallows said-;top;p late-;;I and Jolade 2.0

tosbeeswunggtoga reversedpositiom Fig;i3.).' In; this-;-.reversed position, the-tip; 2 I of;:the bladeflfla underlies thei-lug I 2 and .thefront -tend=. I 6rofzthe-i the. top-plate;- I 5 ,occupieswitsnormal position, in; readiness-for:usesof the -k1'1if6,: Saidi plate pl 5 ibeing then held against: pivotal-movement bytheainte bolt. .23-.and.:nuta 24; When- :this-inut is loosened upon said plate I5 may be readily reversed to the position shown in Fig. 3. The nut 24 is then again tightened. 7

Whenever swinging the top plate I5 to the reversed position of Fig. 3, it is swung in such a direction that the back edge of the blade 20 will enter under said lug first, overcoming danger of the blade striking the lug and dulling it, and to insure guiding of the plate end It into overlying relation with the lug I2 as the blade end enters under said lug, this lug is preferably provided with a downwardly bent edge 26 which acts as a cam to guide said end IS upwardly over the lug. This cam comes into play when the edge of the blade faces in the direction shown in the drawing, and this blade position is preferable for a righthanded person. However, for a left-handed individual, the blade may be turned completely over, disposing its edge in the opposite direction. Then, in order that the plate end I6 shall be engagement: of; saidv detentr- I 3 and: notch.-.25; in;v addition ;to-.- the rclamping action afforded-z bywthee guided up onto the lug l2 when reversing the top plate l5, said lug is formed with a second cam 21.

In using the device to open an envelope, one of the creased edges of the envelope is placed in the angle between the plate ends II and I6 and pierced with the tip 2! of the blade 20, after which movement of the knife along the envelope edge, will cleanly out the latter. The tip of the blade may also be conveniently used to cut out news items and the like from papers or magazines.

From the foregoing, taken in connection with the accompanying drawing, it will be seen that novel and advantageous provision has been made for carrying out the object of the invention. However, attention is again invited to the possibility of making minor variations within the scope of the invention as claimed.

I claim:

1. A knife comprising an elongated bottom plate having its front end turned obliquely downward and having its rear end folded upwardly and inwardly to provide an overlying lug; an elongated top plate lying longitudinally upon said bottom plate and having its front end turned obliquely upward into forwardly diverging relation with said downwardly turned front end of said bottom plate, the rear end of said top plate being disposed under said overlying lug; a blade interposed between said top and bottom plates and secured to said top plate, the front end of said blade being disposed between the forwardly diverging front ends of said top and bottom plates; and a pivot connecting said top plate with said bottom plate, said pivot being located between the ends of said top and bottom plates in a position to allow reversal of said top plate to a position in which the front end of said blade will underlie said lug and said upwardly directed front end of said top plate will overlie said lug.

2. A knife comprising an elongated bottom plate having its front end turned obliquely downward and having its rear end folded upwardly and inwardly to provide an overlying lug; an elongated top plate lying longitudinally upon said bottom plate and having its front end turned obliquely upward into forwardly diverging relation with said downwardly turned front end of said bottom plate, the rear end of said top plate being disposed under said overlying lug; a blade interposed between said top and bottom plates and having its front end disposed between the forwardly diverging front ends of said top and bottom plates, said top plate having downwardly and inwardly bent longitudinal flanges embracing said blade and securing it to said top plate, and a pivot connecting said top plate with said bottom plate, said pivot being located between the ends of said top and bottom plates in a position to allow reversal of said top plate to a position in which the front end of said blade will underlie said lug and said upwardly directed front end of said top plate will overlie said lug.

3. A structure as specified in claim 1; one of said plates having a longitudinal slot receivin said pivot and allowing slight forward sliding of said top plate from its normal position, the rear ends of said plates having coacting normally engaged means disengageable by said forward sliding of said top plate and normally effective to prevent pivotal movement of said top plate.

4. A structure as specified in claim 1; said lug having a downwardly bent edge constituting a cam to lift said front end of said top plate into overlying relation with said lug when said top plate is swung to reversed position.

5. A knife comprising an elongated bottom plate having its front end turned obliquely downward and having its rear end folded upwardly and inwardly to provide an overlying lug; an elongated top plate lying longitudinally upon said bottom plate and having its front end turned obliquely upward into forwardly diverging relation with said downwardly turned front end of said bottom plate, the rear end of said top plate being disposed under said overlying lug; a blade interposed between said top and bottom' plates and having its front end disposed between the forwardly diverging front ends of said top and bottom plates, said top plate having downwardly and inwardly bent longitudinal flanges embracing said blade, said top plate and blade having alined openings substantially midway between the ends of said top plate, said bottom plate having a short longitudinal slot communicating with said openings; and a pivot bolt extending through said openings and slot and allowing reversal of said top plate to a position in which said front end of said blade will underlie said lug and said front end of said top plate will overlie said lug; the rear ends of said top and bottom plates having coacting interengaged means releasable by forward sliding of said top plate and normally efiective to hold said top plate against pivotal movement.

AUSTIN F. TEIGEN.

No references cited.

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