US2727719A - Tool for a locking band - Google Patents

Description

13% 1955 H. A. SCOTT ET AL TOOL FOR A LOCKING BAND 2 Sheets-Sheet 1 Filed 001;. 3, 1949 Inventors FIG. 3

HARRY A. SCOTT &

JOHN J. FERGUSON Attorneys Dec. 20, 1955 H. A. SCOTT ET AL 2,727,719

TOOL FOR A LOCKING BAND Filed Oct. 5, 1949 2 Sheets-Sheet 2 I5 6 l 2| F|6.7 5 20 a l2 lNVENTOR-S l8 HARRY ASCOTT 8:

ATTORNEYS.

United StatesPatentO TOOL FOR A LOCKING BAND Harry A. Scott and John J. Ferguson, Van Wert, Ohio,

assignors to Continental Can Company, Inc, New York, N. Y., a corporation of New York' ..The invention described in detail in the following specification relates to a tool or implement for actuating the latch of a locking band or clamping ring as used with drums and other containers. The tool is designed for ellicient, facile operation in effecting the latching and unlatching of such bands. M

It is well known to provide covers or closures for drums or the like with clamping rings or locking bands which are first compressed or constricted around the upper edge of the drums, and with the bands then'latched into position for storage and shipment.

We have found that, in ordinary use of such drums, the actuation of the latch is troublesome if done manually. The present invention is in providing a specially constructed and designed implement by which the latch can be engaged and disengaged.

One of the objects of the invention is to provide a simple tool or implement which can be applied to the customary latch for actuation of the latter.

A further object of the invention is to provide a device which will permit the operator to apply the actuating effort at a point remote from the latch and in the clear space above the drum cover.

A still further object of the invention is to provide a latch actuating tool with special facilities for conforming to the operating conditions found in the customary locking bands. For example, the novel tool is provided with means to ride over projecting parts of the locking band in the engaging operation.

Another object of the invention is to provide in a single unitary device, means for disengaging the latch, and thereafter facilitating the removal of the drum cover.

Other advantages of the invention will be evident from the following specification.

For purposes of illustration, the preferred form of the invention will be shown on the accompanying drawing in which:

Fig. l is a plan view of the improved tool or implement;

Fig. 2 is a fragmentary side elevation of a locking band in closed position, with the latch being actuated by the tool;

Fig. 3 is a transverse sectional view taken on the line 33 of Fig. 1;

Fig. 4 is a vertical transverse cross-section taken on the line 44 of Fig. 1;

Fig. 5 is a fragmentary top plan view of the locking band in a closed position with the latch fastened;

Fig. 6 is an enlarged side elevation of the same, and

Fig. 7 is an enlarged vertical cross-section on the line 77 of Fig. 6.

Briefly stated, the invention comprises a tool or implement of an integral piece of sheet metal having portions at one end bent laterally to engage the customary latch and bring it into fastening position, riding over the projecting parts of the locking band, if necessary. Likewise, the tool is equally well adapted for disengaging the latch. After the locking band is removed, then the tool is also 2,727,719 Patented fiec. 20, 1955 particularly well adapted to assist in breaking the friction grip of the closure on the drum.

We have shown in the drawings the usual retaining ring 5 which is clamped around the upper edge of the packing drum and holds the rolled edge or head of the drum closure. This locking band includes a toggle lever 6 by which the two ends of the band 5 are brought together in locking position. The lever 6 rests against the side of the band 5 in closed position.

This lever 6 has a cam edge 7 at its free end by which the device is forced into contact with the side of the band 5.

The lower side of the lever 6 has a rectangular notch 8. The lever 6 has a tongue 9 between the cam edge 7 and the notch 8.

lnwardly of the notch 8 and parallel to the lower side edge of the lever 6, is a ridge 10. This ridge 10 is formed by striking up the metal to leave a groove 11 on the underside, this groove being adapted to receive a fastening stud on thelatch proper.

The latch arm proper 12, is pivoted to a pivot pin or stud 13, extending outwardly from the side of the band 5 beyond the cam edge 7. This latch arm has a protuberance on its free end. This protuberance is positioned to fit in the groove 11 of lever 6 when the latch arm 12 is fully engaged. The intermediate portion of the arm 12 is offset laterally, as shown in Fig. 2, so that it will ride over the tongue 9 of the arm 6. In the engaging operation, the shoulder of the arm 12 bears down on the cam edge 7, while the free end fits into the notch 8 and allows the protuberance 14 to spring into the groove 11.

The arrangement of parts set out above is already known and forms part of the invention for which application for patent has been filed by Harry A. Scott and John W. Spieker, September 20, 1948, Serial No. 50,134, now Patent No. 2,579,975, granted December 25, 1951.

The engagement of the latch 12 and arm 6 above described is quite firm. In the movements either to engage or disengage the arm, considerable effort must be exerted. The clearance of the parts is such that little space is offered for operating the latch arm by hand alone, and it is not adapted for actuation by tools usually at hand.

We have therefore devised a tool which is the subject of this invention, with the particular object in view of quickly and certainly engaging the latch arm and operating it in either direction from a convenient position in the space above the drum and its cover.

The tool 15 consists of a single bar of rigid material, preferably sheet metal. This metal can be stamped out to form an appropriate blank, which may then be shaped in the particular form desired. One end 16 constitutes the handle portion. The opposite end 17 is pointed, due to the converging of the side edges of the blank. One

diagonal edge is bent laterally at right angles to form a flange l8. Extending inwardly from the flange 18, the blank is slotted, as shown at 19. The inner edge of the slot 19 is formed with a tongue 20. This tongue is also bent inwardly parallel to the flange 18, as shown in Fig. 4. It will also be noted that the tongue 20 has a slight inclination from the perpendicular and toward the flange 18. This forms a tooth or biting edge for gripping the upper edge of the latch arm 12. It will be obvious from Fig. 2 that the flange 18 and the tongue 20 are spaced apart sufiiciently to receive the latch arm.

Where the end 17 merges with the upper side edge of the plate, as shown in Fig. 1, the corner is bent outwardly a slight distance to provide a slight cam.

The rear end 16 of the handle has an inwardly directed edge 22. This edge is connected to the lower side edge of the tool 15 by means of a notch 23 and a hook 24.

After the lever 6 is placed in closed position, the tool 3 15 "is -"applied totlie latch-'arm 12, as shown in Fig. 2. In. this position,.the flange. 18. establishes an.angu.lar.-p.osi: tion of the tool with respect to the arm 12. At the same time, the arm is clamped between the flange and the tongue 20: Ddwnward pfessure 'on the handle end 1'6 (leftwar'ch as shown in Fig. 2) would serve=to-lift'.the latch.'arm 12 intoengagin'gposition -with the leve'r 6. Inthis operation,

theca'rn 21will ride ovr-theuib ltlgif the tool'is engaged atthe-eXtreme* right' of the intermediatepart of the arrn= 12: The} engagement of the latch is concludedby the projection riding 'under the lever 6 and into the groove 11'.

In this engaging operation; the downward inclination" of"the tongue20= insures a firnrgripof the latch-arrn 12 and' without likelihood of slippage."

The reverse operation consists in the engagement of the arm 12 'by the=tool 15 and' movement of the latter to-the right; as -shown bythearrow -in Fig. 2. 1 This forces theprojection 14 out of the groove 11 and pivots the-arm 12 the book 24. Upward'effort applied to the handle is efiective. to. release. the cover. without. difliculty...

The invention as described above is simple and rugged in construction, and also economical to manufacture. It is particularly well adapted for actuating the latch arm of the conventional retaining band of drums. It is sure in its operation, and can.- be usedby anyone without requiring special skill.

While theprefrredfdnnofi the inventiomhas been set out. in detail, the scope of the.invention is limited solely by the terms of the followingicl'aimu What we claim is:

A tool for actuating a pivoted latch consisting of a flat metallic plate having" at'one end; a corner bent at a right angle to the plate to form a narrow. flange disposed at an obtuse angle to the adjacent side edge of the plate, a tongue struck-up from the plate inwardly of the flange and parallel thereto, and the other corner of the end beinggzbentv outwardlyrin the oppositeedirection to form anitinclinediicam substantially. in: line-with the tongue References-fined in the file: of. this patent UNITED *STATES PATENTS 899,346 Soper Sept. 22, 1908" 1,'585 8'58 I-Ii'att May 25, 1926 2,006;944 Courtney July 2, 1935- 2148;701" L'oy Feb. 28, 1939.' 2,345,324- Byers Mar. 28; 1944

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