US 530913 A
Description (OCR text may contain errors)
No. 530,913. Patented Deo. 11, 1894-.
'ne mums PETERS cu. PNm'c-Lmdo., wAsHINGT'oN, D. c.
UNITED STATESvr JAMES H. oooK, Jn., or HOMER,
MICHIGAN, ASSIGNOR OF ONE-HALFy TO HENRY O. COOK, OF SAME PLACE.
SPECIFICATION forming part of Letters Patent No. 530,913, dated December 11, 189,4.
Application filed January 29, 1894. Serial No.
498.407. (No model.)
To a, whom t may concern.'
Be it known. that I, .I AMES H. COOK, .I r., a citizen of theUnitcd States, residing at Homer, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements in Knives, of which the following is a specification, reference therein to the accompanying drawings.
The invention consists in the peculiar construction of a pocket knife, comprising a casing in which a'blade slidingly engages, a pin secured to the blade extending through a slot in the casing'and connected to a plate on the outside, which when turned atan angle to the casing may be employed as a handle to slip the blade in or out, and when turned parallel therewith forms a complementary portion to the handle wh en the blade is opened or closed.
The construction is designed to make what I call a safety pocket knife, that is one which cannot be closed on the hand when using it, also which is free from dirt by having the casing entirely inclosed when the blade is withdrawn and dispensing entirely with the use of springs.
The invention further consists in the peculiar construction, arrangement and combination of the various parts as more fully hereinafter described.
In the drawings, Figure 1 is a perspective view of my improved knife, showing the blade withdrawn and the cover or actuating plate turned slightly from its closed position.. Fig. 2 is a plan view showing the blade partly extended. Fig. 3 is a vertical, central, longitudinal section therethrough, when the blade is entirely extended.v Fig. 4 is a cross section on line :l: @c of Fig. 2.` Fig. 5 is a horizontal section through the connecting pin, showing the casein plan.
A is a casing closed on all sides, having the opening B at one end. 'C is a knife blade therein, of a length to be inclosed entirely within the casing.
D is a pin pivotally secured at the base or butt of the knife blade and having the flat portion E engaging through a longitudinal slot F in one of the side walls of the casing being had through the reverse operation,
A. At each end this slotis provided with an enlargement G which may have stops or 5o shoulders II on opposite sides, against which the vsides of the dat portion E off the pin is adapted to'engage when turned at rightangies to the slot. f 1 I is aplate secured near one end to the outer end of the dat yportion E of the pin and forming a handle, by means of which the blade may be extended from the casing or withdrawn therein.
J is a hook at one end of this plate adapted to form a cover for the open end B of the casin'g when the blade is withdrawn. A
The parts being thus constructed their op eration is as follows: In the closed position of the knifethe hook .I engages over the open end B of the casing and thus closes the only point through which dirt might find access to the interior, the plate proper covering the slot F. To open it, the operator turns the plate at right angles to the casing, in which position the iiat portion E of the pin registers with the longitudinal slot F. Then using the plate as a handle, the knife blade may be slid out of the casing, as shown in Fig. 3 The plate may then be turned parallel with the casing, the hook portion engaging over the butt of lthe casing, as shown in Fig 3, and forming a complementary portion of the handle. In this position the sides of the dat por- ,tion' E of the pin engage against the shoulder I-I at the forward end of the slot, which securely locks the blade against being withdrawn.
To withdraw the blade the operator goes that is, turns the plate to a position at right angles to the casing, sliding the pin through the slot to the butt and then turning the plate upon the pivot, engaging the hook over the open end of the casing. In this position the pin engages against the shoulders H, of the enlargement G at the butt of the casing, which prevents the withdrawal of the blade until the plate is again turned at right angles to the casing. Thus I obtain a knife in which the blade is locked in its closed position, locked in its open position and provided with a casing which is dust proof, obviating all use of springs and the trouble connected therewith. Any desired shape of blade may be used and the pin and plate may be varied also to cover any means of locking the pin by turning it in opening and closing.
NVhat I claim as my invention isl. In a knife, the combination of a hollow case, a blade sliding therein, a pin extending from the base of the blade and entering a longitudinal slot in one side of the case, and a plate secured to the outer end of the pin, adapted to be turned at an angle to the case, adapted to form a handle to move the blade, and to form a complementary portion thereof when the blade is open or closed, substantially as described.
2. In a knife, the combination of a hollow casing, a blade sliding therein, a `pin extendase of the blade through a lonf n the side ofthe casing, apl'ate` e outer end of ,the pin, i turned at an angle or parallel le, and means for locking the ou ad de 2O z5 with the hand blade in its open and cl movement of scribed.
3. In a knife, the com casing, open at one en when the plate is ov tially as described.
ing pin connecting slot in the casing,
ing shoulders H, t erating subst In testimony whereof I a osed position by the the plate, substantially as debination of the hollow d, the blade slidingly 3o a plate I pivoted to the g having the hook J open end of the casing er the casing, substan- 35 the combination of the case C therein, the plate I, the he butt of the blade with the e, and `projecting through a the ,hook .I on the plate, e enlargements at the ends of the slots havhe parts arranged and opantially as and `for the purpose gaging therein, and tside of the `casin apted to cover the 4. In a knife, 0' A, the blad t end of the plat scribed.
ix my signature in 45 esence of two Witnesses.
JAMES Il. COOK, JR. Witnesses:
J Essrn RoBARDs, L. B. TOMPKINS.