US953843A - Can-opener. - Google Patents

Description

J. P. KEELEY.

GAN OPENER.

APPLICATION FILED AUG. z5, 1909,

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@VMM-amm Cf i JOHN P. KEELEY, F CfLTESVILLE, PENNSYLVANIA.

CN-OENER.

5,353,345 9 Specification of Letters Patent.

Application filed August 25, 1369.

To all whom it may concern.'

Be it known that l, JOHN l). Knnnnr, a, citizen of the United States, residing at Ctnitesville, in the county of Chester and State of Pennsylvania, h vc invented certain ne f and useful ,improvements in Can- Openers, of which the following is a specification.

rihis invention relates to certain new andl useful improvements in can openers.

riflie elije :t of my invention is to provide a can opener in the form of a square metal bar having a bayonet point, and carrying a normally freely held knife carrier which upon the operation of the opener, is brought into positive engagement with the operating bar.

Another object of my invention is to simplify the manufacture of can openers of thatclass to which my present invention relates.

still further object is to provide a can opener the blade-carrying member of which may be provided with two knives or cui' ters so that the two may be used in cutting leather, rubber or other like washers.

Other objects and advantages will be apparent from the following description, and itwill be understood that changes in the specific structure shown and described may be made within the scope of the claims with out departing from, the spirit of the invention.

ln the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views, Figure 1 is a side elevational view of a can opener embodying my invention, F ig. 2 is a top view partly in section, Fig. 3 is a sectional view on the line f3-at of F 2 looking toward the handle, Fig. 4 is a section on the line Slof Fig. 2 looking toward the point, l? 5 shows the carrier provided with two cutting knives.

My invention has for its aim, to improve the construction and operation of that class of can openers, in which a radius bar is eniployed, having a fulcrum point which is forced into the can, the cutting knife carried by the har then being carried in a circular path to cut a` disk-shaped can section which upon being removed leaves a circular opening through which the contents are emptied.

in operative embodiment of my invention includes a square bar 1, having the integral rib handle 2. fis shown in the drawg Patented alpin 5,

Serial No. 514,600.

ings one side of this bar is provided with the rack teeth 3, the bar ending in a bayonet point including the laterally extending odset portion ll, which is held approximately at right angles to the bar portion 1, and from which extends the conical fulcrum point 5 this point being continued approximately at right angles from the offset portion e and in prolongation with said stem or bar portion 1, as clearly disclosed in Fig. 1. Slidahly held upon this bar 1, is a knife carrier G which is approximately rectangular in cross section but has its lower face slightly curved as is shown at 7, this carrier being` provided with a rectangular slot S within which the bar 1 is slidably held. As shown, the slot S is of a width greater' than the thickness of the bar 1, so that this bar may be horizontally reciprocated within the carrier '(2. Within the slot 8, is positioned the lug 1() arranged to lind a seat between the teeth 3 of the bar. Secured to this carrier 6 is a bow spring 12 having the recurved ends 13, this spring 12 being held to the carrier G by means of the screw lili. The curvedv ends 13 of this spring 12 are arranged to be held between the rack teeth as is disclosed in the drawing. By means of this spring 12, the lug 1() is normallyv7 held out of engagementwith the `teeth 3 so that this carrier (3 can at all times he freely moved backward and forward upon the bar. rlfhc inmfeinentof the carrier however is against the tension of the spring 12 so that this carrier is yieldingly held upon the bar 2.

ln order to provide a maximum of strength with a minimum of weight, and further to insure a handle which can be iirinly held and easily grasped bv the hand of the operator, the handle is in the form of a plurality of round edged ribs as disclosed in Fig, 3.

Upon each end of the carrier 6 may be secured a knife or cutter 15. 'When the tool is to be used as a can opener but one such cutting' knife 15 is employed. Where the tool is used in cutting washers, however, two knives are necessary. Each knife is provided with an aperture arranged to receive the securing screw 16 by means of which the knife is held to the carrier. Each knife is further provided with two upstanding shoulders 18, the upper edge 19 of the knife contacting with the under surface of the bar 1 as shown` Ey this means the knives are firmly held to the carrier, against any c end is proif'ided with a threaded aperture The carrier at each l l bar before the bayonet point is formed in ul setting the pointed end ot the bar.

he bar and handle as above described may be formed entire at one operation, iu eing stamped from suitable metal or in being cast in a mold.

ne operation et' the device is very simple. lt is of course understood that this ca n opener is especially adapted to be used in or cylindrical cans, thougl'i t e can also be used in opening large square cans in providing` the same with circular discharge opening. The opener is the can in forcing' the conical point into the can and then bringing the bar l in a horizontal position above the can wien the knife is driven into the can and the handle is advanced toward that side.

The carrier is normally out of contact with the rack teeth. ln order to operate the knife, the carrier is forced sidewise against the tension of the spring l2 to bringthe lunl l0 into engagement with the rack.

rlhe tool is simple and inexpensive in construction and both durable and etticient in operation, and the knife adjustments may be i ade with easel` accuracy, and despatch.

laving thus described my said invention, what claim as new and desire to secure by United States Letters atent is:

lire herein described can opener coin- 'ising a square bar having an integral r'obed handle at one end and a laterally extnding ofset portion at the other from *which is continued at right angles and in prolongation with said bar a conical ful- I cruin point, one side of said bar having rack t cth, a knife carrier laterally movable upon said bar having a luc' to engage between said rack teeth, a bow spring secured to said carrier having its curv d ends contacting with said teeth to hold said lug normally out ot engagement with said teeth, and a knife pendent from and removably secured to said carrier.

2. lThe herein described can opener comprising a square bar having a laterally extending' oilset portion at one end from which is continued at right angles and in prolongation with said bar a conical ulcrum point, one vertical side ot' said bar having rack teeth, a knife carrier movable upon said bar haring a lugl to engage between said rack teeth, a bow spring secured to said carrier having its curved ends contacting with said teeth to hold said lug normally out of engagement with said teeth, and a knife removably secured to said carrier.

3. n. can opener having' in combination a square bar provided with a laterally eX- tending offset portion from which is continued a conical 'fulcrum point, one vertical side of said bar having rack teeth, a knife carrier horizontally movable upon said bar having a lug to engage between said rack teeth, a bow spring secured to said carrier to normally hold said lug out of engagement with said teeth, and a knife secured to said carrier all arranged substantially as and for the purpose set forth.

ln testimony whereof I aHiX my signature, in presence of two witnesses.

JOHN P. KEELE T.

lVtnesses wiLLmM S. G. Coon, Bessin lV. Bnkknnisnn.

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