US364414A

US364414A - Gael hollweg

Info

Publication number: US364414A
Authority: US
Publication date: 1887-06-07
Anticipated expiration: 1904-06-07

Description

(No Model.)

0. HOLLWEG.

POCKET KNIFE.

No. 364,414. Patented June '7, 1 887 II/ZZIZe55e5;

Aiiw'lzeys UNITED STATES PATENT OFFICE.

CARL HOLIAVEG, OF BARMEN, PRUSSIA, GERMANY.

POCKET-KNIFE.

SPECIFICA'IIQN forming part of Letters Patent No. 364,414, dated June 7, 1887.

Application filed January 10, 1387. Serial No. 224,886.

To all 1072 0772 it may concern:

Be it known that I, CARL HoLLWEe,of Barmen, Ithcnish Prussia, Germany, have invented a new and Improved Knife, of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved knife with movable blades in which all springs are dispensed with, and in which each blade is held in a locked position when opened or closed, and the blade is similar view of the same with the blades closed.

Fig. 3 is a sectional plan view of the same on the line or x of Fig. 2. Fig. 4 is a side elevation of the same with parts removed. Fig. 5 is an elevation of the back locking-plate. Fig. 6 is a perspective view of one of the knife blades; and Figs. 7 to 13 are detail views of parts of the knife, hereinafter more fully described.

The knife casing or handle consists of two side pieces or plates, A, on each of which can be secured an ordinary handle, B. The two side pieces are fastened together by rivets It, on which turn the knifeblades, and by a back plate, 0, (see Fig. 5,) provided with the lugs h, which fit in corresponding recesses, 1;, formed in the said side plates, A.

Each of the knife-blades K is provided with the usual aperture, a, through which passes the rivet It, and with a second square aperture, 1), which corresponds with the square aperture b formed in the turning-plate E, (see Fig. 7,) adapted to turn on the said rivet R. In the apertures b and b fit the trunnions of the carrying-pin F, (see Figs. 11 and 3,) adapted to slide in the semicircular recess f, formed in the side plates, A. V l

It will be seen that when the plate E is turned the knife-blade K is also turned with (No model.)

on the plate A, by the washer G, which fits over the central part of the plate E and over the trunnions i i of the handle D. The rivet R holds the washer Gin place. (See Fig. 3.)

The handle D is provided in its rim with two recesses, r r, placed opposite each other, and into which fits a corresponding lug, n, formed on the locking-plate H, secured to the side plate, A, as shown in Figs. 1, 2, and 4.

If two knife blades K are fulcrumed on one rivet R, as shown in Fig. 3 and the lower parts of Figs. 1 and 2, then I place a partitionplat e, L, (shown in Fig. 13,) between the said knifeblades K, as shown in Fig. 3; but if only one knifeblade K is fulcrumed 011 the rivet It, as shown in the upper part of Figs. 1 and 2, then I usea partition-plate, L, (see Fig. 13,) on each side of the knifeblade K. This partition-plate L is provided with the semicin cnlar slot f, corresponding to the slot f in the side plate, A. In the latter case I need but one handle D on one side of the knife, and the other side of the knife is provided with a semicircular plate, J, without a handle, as shown in Fig. 12.

The operation is as follows: When the knife is in a closed position, as shown in Fig. 2, and the operator desires to open one of the knifeblades, he moves the respective handle D into i a right-angular position to the plate E, and by inserting his finger-nail under the inclined edge (I of the handle D presses the latter upward. This upward movement throws the notch r outof contact with the lug n on the locking-plate H, and the operator then turns the handle D, whereby the plate E turns with the handle D and the respective knifc-blade K turns with the plate E on account of its connection with the latter by the carrier-pin F. As soon as the respective knife-blade K is fully opened, as shown in Fig. 1, then the operator presses the handle D flat upon the plate A,

whereby the other notch ,r, engages the lug non the locking-plate H, and the knife-blade K is thus held locked in the open position, as the handle D and the plate E are prevented from turning.

It will be seen that the knife-blades can all be independently opened or closed and held locked in either position without compelling the operator to touch the knife-blades. It will also be seen that no springs of any description are used in the construction of my knife.

The improvement can be used on pocketknives or larger knives, and it can also be adapted to corkscrew-blades, &c.

Having thus fully described my invention, I claim as new and desireto secure by Letters Patent-- 1 l. The combination, with the handle, the side plates of which are immovable with respect to each other, of a blade pivoted within the handle and provided with an outer independent handle for throwing it into or out of the knife-handle, substantially as set forth.

2. The combination, with the handle, the

. side plates of which are immovable with respect to each other, and a locking-lug on the outer side of the handle, of a blade pivoted within the handle and provided with an outer independent handle adapted to engage the said locking-lug, and thereby lock the blade when thrown, substantially as set forth.

3. In a knife, the combination,with aknifeblade, of a carrier-pin connected with the said blade, a turning-plate connected with the said carrier-pin, and a handle'pivoted on the said turning-plate, substantially as shown and de scribed.

4. In a knife, the combination, with aknifeblade, of a carrier-pin connected with the said knife-blade, aturn'ing-plate connected with the said carrier-pin, a handle pivotedon the said turning-plate, and a locking-plate for locking the said handle in position, substantially as shown and described.

5. In aknife,the combination, with a knifecasing and the rivet on which turns theknifeblade, of a knife-blade having'a square aperture at one side of its fulcrum, a carrier pin fitting into the square aperture of the knifeblade, a plate turning on the said rivet and connected with" the said carrier-pin, and a handle hinged on the said turning-plate, substantially as shown and described.

6. In a knife, the combination,with a knifecasing and the rivet on which turns the knifeblade, of a knife-blade having a square aperture on one side of its fulcrum, a carrier -pin fitting into the said square aperture of the knife-blade, a plate turning on the said rivet and connected with the said carrier-pin, a handle hinged on the said turning-plate, and a locking-plate secured to the said knife-easing and serving to hold the said handle in a locked position, substantially as shown and described.

7. In a knife, the combination, with the knife-casing and the rivet on which turns the knife-blade, of a knife-blade having a square apertu re on one side of its fulcrum, a carrier-' pin fitting into the said square aperture of the knifeblade, a plate turning on the said rivet and connected with the said carrier-pin, ahandle hinged on the said turning-plate, and a locking-plate secured to the said knife-casing and serving to hold the said handle in a locked position, and a washer for holding the said handle on the said turning-plate, substantially as shown and described.

8. In a knife, the side plates, A, having the semicircular slot f, the rivet R, and the back, in combination with the knife-blade K, turning on the said rivet R, and having a square aperture, 1), the carrier-pin F, sliding in the said semicircular recess f of the said plate A, one end of which pin Ffitsinto the said square aperture 1) of the knife-blade, and an outer handle for moving the said carrier-pin in the said semicircular slot f, substantially as set forth.

9. In a knife, the side plates, A, having the semicircular slot f and the recesses 12, the rivet R, and the back plates, 0, having thelugs h, fitting into the said recesses 29 of the side plates, A, in combination with theknife-blade K, turning on the said rivet It, and having a square aperture, 1), the carrierpin F, sliding in the said semicircular recess f of the side plate, A, one end ofwhich pin Ffitsinto the said square aperture 1) of the knife-blade, the turning-plate E, fulcrumed on thesaid rivet R, and provided with the square aperture Z), into which fits the other end of the carrier'pin F,

the handle D, hinged on the said turning-plate E, the locking-plate H, provided with the lug n, on which fit the notches r in the said handle D, and the washer G, holding the lugs i on the handle D in the recesses m'of the turning-plate E, substantially as shown and de: scribed.

10. In a knife, a knife-casing provided with the side plates, A, having the semicircular recesses f, the back plate, the rivet or bladepivot, and the knife-blade K, turning in the said casing on the said rivet or pivot, and provided with a square aperture, b, in combination with the carrier-pin F, sliding in the said semicircular recess f of the side plate, one end of which pinF fitsinto the said square aperture 1) of the knife-blade, the turningplate E, provided with the square aperture 1), into which fits the other end of the said earrier-pin, F, the handle D, hinged on the said turningplate E, and the locking-plate H, having the lug a, on which fits one of the notches r of the said handle D, substantially as shown and described.

CARL HOLLWEG.

\Vitnesses: Y

FRIEDR. HOLLWEG, 81:, AUG. Flissnnnnnn.