|Publication number||US988068 A|
|Publication date||Mar 28, 1911|
|Filing date||Feb 23, 1910|
|Priority date||Feb 23, 1910|
|Publication number||US 988068 A, US 988068A, US-A-988068, US988068 A, US988068A|
|Inventors||John W Beardsley, Elton E Folts|
|Original Assignee||John W Beardsley, Elton E Folts|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (57), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
JfW. BEARDSLEY & E. E. FOLTSF KNIFE.
APPLICATION FILED PEB.23,1910.
988,068. I 8 Patented Mar. 28, 1911.
TH: NORRIS PETER5'CO., WASHINGTON, n. c.
JOHN W. BEARDSLEY AND ELTON E. FOLTS, OF KANE, PENNSYLVANIA.
Specification of Letters Patent.
Patented Mar. 28, 1911.
Application filed February 23, 1910. Serial No. 545,376.
To all whom it may concern:
Be it known that We, JOHN W. BEARDS- LEY and ELTON E. FoL'rs, citizens of the United States, residing at Kane, in the county of McKean and State of Pennsylvania, have invented certain new and useful'lmprovements in Knives, of which the following is a specification.
This invention relates to pocket knives and chiefly to that variety of pocketknives known as locking knives, the blade thereof being locked open by the spring back.
This invention also contemplates the construction of a knife of this type and character wherein the spring back has a double bearing upon the shank of the knife when the same is closed, which bearing tends to retain the knife in a closed position, and raise the edge thereof from the back to prevent the dulling thereof.
A. further object of this invention is to apply the same to a knife wherein a plurality of blades are used in such a manner that only a single locking element, that is, a spring back is necessary.
lVith the above and other objects in view, this invention consists of the construction,
combination and arrangement of parts all as hereinafter more fully described, claimed and illustrated in the accompanying drawings, wherein:
Figure l is a central longitudinal section of a knife illustrating the present invention as adapted for use in connection with a single blade; Fig. 2 is a similar view of a modification thereof setting forth the construction of a knife provided with a plurality of blades; Fig. 3 is likewise a central longitudinal section illustrating the position of the blades when closed; Fig. 4 is a perspective view of the spring look back.
Reference being had to the accompanying drawings, 10 indicates the handle portion of a knife constructed in the usual manner, having pivoted therebetween at one extremity the knife blade 11, and provided with the butt block 14 at the opposite extremity thereof. This butt block is provided adjacent the back of the knife with a recess 15, said recess forming the shoulder on the interior of the butt block.
The shank 13 of the knife is provided with a notch 12 in one side thereof and a depression 21 oppositely disposed thereto, said recess forming a projecting shoulder of the lug 24. This construction of the shank of the knife cooperates with the peculiar formation of the spring look back for attaining one of the objects of the present invention, that is, to provide a double pressure on the shank for retaining the same within the handle portions when the knife is closed and supporting the latter from the back.
The spring lock back 16 is of a peculiar formation, being provided at the extremity thereof adjacent the butt block 14 with the outwardly extending projection 17, said projection forming a means whereby pressure may be exerted on the back to release the knife blade 11 when the same is locked in an open position. The back 16 is pivoted between the handle portions 10 by the rivet 18 centrally disposed with respect to the length of said back and is the securing means thereof. The back 16 is split directly under the finger piece 17 from the extremity inwardly, after which it is bent outwardly and tempered in this position, thus forming the outwardly curved spring which, when the back rests in its normal position, bears against the shoulder of the recess 15 formed in the butt block 14. The forward extremity of the back 16 is provided with an inwardly extending lug 19 which, when the knife blade is open is engaged in the recess 12 of the shank 13, thereby locking the knife in said position. The body portion of the back is reduced at 25 adjacent said lock, forming a sloping surface which cooperates with the shoulder or projection 24 of the shank. Attention is directed to the advantages derived from this construction of the back 16. When the knife is closed as is set forth in Fig. 3, the lug 19 bears against the extremity of the shank while the depressed portion 25 of the back operates against the projection 24, thus supporting the knife from the back, exerting a double pressure thereon to retain the same within the handle and supply a means whereby the back 16 rests flush with the edges of the handle portion when the knife is closed.
Referring to the modification set forth in Figs. 2 and 3, the means for locking the forward blade 11 is exactly similar to that illustrated in Fig. 1, the lug 19 engaging in the recess 12. However, the blade 26 is pivoted in the opposite extremity of the handle portions to that occupied by the blade 11, the shank 22 thereof being constructed similar to the shank of the blade 11'. This shank is provided with an angular recess 23 which is adapted to be engaged by the inwardly extending lug 29 carried at the terminal of the spring 20. The butt 15 extends only a portion of the width or depth of the handle, consequently permitting the blade 26 to swing freely, and a transverse pin 27 is located under the spring 20 and bears against the same.
From the foregoing description, it will readily be seen that upon exerting a pressure on the finger piece 17, the extremity thereof carrying the same will be depressed about the fulcrum 18, causing the forward extremity to be raised, and as a result the lug 19 will be removed from the recess 12 thus raising the knife blade and permitting the same to be closed.
In the modification, the operation is similar as regards the blade 11, while the blade 26 is released by the pin 2? bearing against the spring and raising the lug 29 from ongagement with the recess 28, said pin acting a fulcrum for said spring.
Having thus fully described our invention, what is claimed as new is:
1. In a knife, a handle, a plurality of blades pivoted in said handle,-a recess formed in one side of the shank of each blade, a
spring look back pivoted centrally in said handle, having at one extremity thereof an inwardly 1310160't1-11g lug adapted to engage the recess in one of the blades, and at its tion of the back directly above said spring.
opposite terminal an integrally formed spring having an inwardly projecting lug at the terminal thereof adapted toengage the recess in the shank of the remaining blade, and means whereby said last named lug may be released from said last named blade when a pressure is applied to the main body por- 2. In a knife, a handle, a plurality of blades pivoted in said handle, a recess formed in one side of the shank of each blade, a spring lock back pivoted centrally in said handle, having at one extremity thereof an inwardly projecting lug adapted to engage the recess in one of the blades, and at its opposite terminal an integrally formed spring having an inwardly projecting lug at the terminal thereof adapted to engage the recess in the shank of the remaining blade, and a pressure pivot located below said spring adapted to release said last named blade from the free terminal of said spring when pressure is exerted on the body por-- tion of the back directly above said spring.
In testimony whereof we affix our signatures in presence of two witnesses.
JOHN lV. BEARDSLE". ELTON E. FOLTS.
Witnesses CHAS. G. HUBBARD, C. V. GiLLis.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents,
- Washington, D. C.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2624939 *||Jul 5, 1947||Jan 13, 1953||Torger Tveit||Folding pocket knife|
|US2851704 *||Apr 3, 1956||Sep 16, 1958||Zoeller Hugo E||Sheath with latch for folding tools|
|US3783509 *||Feb 11, 1972||Jan 8, 1974||Lake R||Folding knife|
|US4190953 *||Apr 24, 1978||Mar 4, 1980||Naifeh Woodrow W||Adjustable spring tension pocketknife|
|US4302877 *||May 12, 1980||Dec 1, 1981||W. R. Case & Sons Cutlery Company||Single spring double lockblade folding knife|
|US5210950 *||Mar 18, 1992||May 18, 1993||Christian Rankl||Pocket or clasp knife|
|US5765247 *||Jan 11, 1996||Jun 16, 1998||Buck Knives, Inc.||Hand tool with multiple locking blades controlled by a single locking mechanism and release|
|US5781950 *||Oct 7, 1996||Jul 21, 1998||Imperial Schrade Corp.||Locking mechanism for a folding combination tool|
|US5964131 *||Jan 26, 1998||Oct 12, 1999||Valle De Oro Bank, N.A.||Hand tool with sculpted handles and integral key ring|
|US5996451 *||Jan 17, 1997||Dec 7, 1999||Valley De Oro Bank, N.A.||Hand tool with sculpted handles and integral key ring|
|US6125543 *||Jun 2, 1999||Oct 3, 2000||Spyderco, Inc.||Dual bladed knife with adjacent dual locking mechanisms|
|US6170104||Apr 14, 1998||Jan 9, 2001||Buck Knives, Inc.||Hand tool with multiple locking blades controlled by a single locking mechanism and release|
|US6219870||Aug 13, 1999||Apr 24, 2001||Imperial Schrade Corp.||Lock release mechanism for a folding combination tool or the like|
|US6233769||Sep 12, 2000||May 22, 2001||Buck Knives, Inc.||Hand tool with multiple locking blades controlled by a single locking mechanism and release|
|US6487740||May 1, 2001||Dec 3, 2002||Buck Knives, Inc.||Hand tool with multiple locking blades controlled by a single locking mechanism and release|
|US6487941||Oct 1, 2001||Dec 3, 2002||Great Neck Saw Manufacturers, Inc.||Hand tool|
|US6578221||Mar 28, 2001||Jun 17, 2003||Great Neck Saw Manufacturers, Inc.||Foldable multi-tool|
|US6694558||Feb 5, 2003||Feb 24, 2004||Great Neck Saw Manufacturers, Inc.||Foldable hand tool|
|US6802094||Dec 3, 2002||Oct 12, 2004||Leatherman Tool Group, Inc.||Hand tool with multiple locking blades controlled by a single locking mechanism and release|
|US6804887 *||Oct 23, 2002||Oct 19, 2004||Kantas Products Co., Ltd.||Foldable knife having a double blade|
|US6968622||Dec 31, 2003||Nov 29, 2005||Great Neck Saw Manufacturers, Inc.||Utility knife|
|US7007392||Jan 7, 2005||Mar 7, 2006||Great Neck Saw Manufacturers, Inc.||Utility knife|
|US7040022||May 13, 2003||May 9, 2006||Great Neck Saw Manufacturers, Inc.||Utility knife|
|US7080423||Jul 16, 2004||Jul 25, 2006||Leatherman Tool Group, Inc.||Hand tool with multiple locking blades controlled by a single locking mechanism and release|
|US7134207||May 14, 2004||Nov 14, 2006||Great Neck Saw Manufacturers, Inc.||Foldable utility knife|
|US7146736 *||Aug 30, 2004||Dec 12, 2006||Collins Walter W||Folding knife with cantilevered spring|
|US7296354||Feb 17, 2006||Nov 20, 2007||The Stanley Works||Combination utility and sporting knife|
|US7380341||Jun 21, 2006||Jun 3, 2008||Great Neck Saw Manufacturers, Inc.||Foldable knife|
|US7480997||Feb 12, 2007||Jan 27, 2009||Great Neck Saw Manufacturers, Inc.||Foldable knife|
|US7739799||Jun 22, 2010||The Stanley Works||Combination utility and sporting knife|
|US20040078980 *||Oct 23, 2002||Apr 29, 2004||Kantas Products Co., Ltd.||Foldable knife having a double blade|
|US20040107580 *||May 13, 2003||Jun 10, 2004||Great Neck Saw Manufacturers, Inc.||Utility knife|
|US20040226173 *||Dec 31, 2003||Nov 18, 2004||Great Neck Saw Manufacturers, Inc.||Utility knife|
|US20040226175 *||May 14, 2004||Nov 18, 2004||Great Neck Saw Manufacturers, Inc.||Foldable utility knife|
|US20040255389 *||Jul 16, 2004||Dec 23, 2004||Seber Brett P.||Hand tool with multiple locking blades controlled by a single locking mechanism and release|
|US20050138816 *||Jan 7, 2005||Jun 30, 2005||Great Neck Saw Manufacturers, Inc.||Utility knife|
|US20050155226 *||Mar 15, 2005||Jul 21, 2005||The Stanley Works||Combination utility and sporting knife|
|US20050204567 *||Aug 2, 2004||Sep 22, 2005||Great Neck Saw Manufacturers, Inc.||Folding utility knife|
|US20050235499 *||Jun 29, 2005||Oct 27, 2005||The Stanley Works||Combination utility and sporting knife|
|US20060026844 *||Aug 6, 2004||Feb 9, 2006||Great Neck Saw Manufacturers, Inc.||Foldable knife|
|US20070130777 *||Feb 12, 2007||Jun 14, 2007||Great Neck Saw Manufacturers, Inc.||Foldable knife|
|US20070214652 *||May 7, 2007||Sep 20, 2007||Qiu Jian Ping||Folding utility knife|
|US20070294895 *||Jun 21, 2006||Dec 27, 2007||Great Neck Saw Manufacturers, Inc.||Foldable knife|
|US20090241349 *||May 15, 2009||Oct 1, 2009||Qiu Jian Ping||Folding utility knife|
|US20110023308 *||Oct 12, 2010||Feb 3, 2011||Qiu Jian Ping||Folding utility knife|
|US20130305541 *||May 17, 2012||Nov 21, 2013||Spyderco, Inc.||Split Spring Locking Feature for a Folding Tool|
|USD450996||Mar 28, 2001||Nov 27, 2001||Great Neck Saw Manufacturers, Inc.||Foldable multi tool|
|USD458527||Jun 15, 2000||Jun 11, 2002||Great Neck Saw Manufacturers, Inc.||Foldable hand tool|
|USD469328||May 29, 2002||Jan 28, 2003||Great Neck Saw Manufacturers, Inc.||Foldable hand tool|
|USD476546||Oct 5, 2001||Jul 1, 2003||Great Neck Saw Manufacturers, Inc.||Foldable hand tool|
|USD477766||Jan 10, 2002||Jul 29, 2003||Great Neck Saw Manufacturers, Inc.||Foldable hand tool|
|USD486715||Oct 1, 2001||Feb 17, 2004||Great Neck Saw Manufacturers, Inc.||Hand tool|
|USD488367||Jan 14, 2002||Apr 13, 2004||Great Neck Saw Manufacturers, Inc.||Foldable hand tool|
|USD491439||Jul 28, 2003||Jun 15, 2004||Great Neck Saw Manufacturers, Inc.||Foldable hand tool|
|USD493346||Jan 29, 2003||Jul 27, 2004||Great Neck Saw Manufacturers, Inc,||Foldable hand tool|
|USD498125||Oct 17, 2003||Nov 9, 2004||Great Neck Saw Manufacturers, Inc.||Hand tool|
|WO1999037446A1 *||Jan 25, 1999||Jul 29, 1999||Sebertech, L.L.C.||Multi-purpose hand tool including implement position locking and release mechanism|