US1884445A - Fuse holder - Google Patents

Description

J. A WEVER FUSE HOLDER Oct. 25, 1932.

Filed Jan. 30, 1931 2 Sheets-Sheet INVENTOR TTORNEYg od. 25, 1932. J w R 1,884,445

FUSE HOLDER Filed Jan. :50, 1931 2 Sheets-Sheet 2 INVENTOR all ,4. ATTORNEY; I

25 'be hereinafter more fully described, illus- 'showing three fuses loaded, two from the Patented Oct. 25, 1932 T E S UNITED s PATE NT OFFICE 1 JOHN A. WEVER, OF BALTIMORE, MARYLAND FUSE HOLDER Application filed January 30, 1931. Serial No. 512,487.

This invention relates to holders especially designed for holding electric fuses of the type commonly used in house wiring.

An object of the present invention is the provision of a device which will hold a number of fuses and which may be conveniently hung adjacent a fuse box, so that the fuses will be at all times handy for use.

Another object of the invention is the provision of a holder wherein the fuses may be readily loaded or removed; may be formed of a single piece of metal of compact dimensions, and which may be light and thin, and therefore cheap, being suitably stiffened and reinforced: may be produced with economy as a punch press item: may be compactly nested for packing and shipment: may be loaded from either side of the holder, and securely held in place by means of a single standard fuse thread. It may in addition effectiveness.

WVith the above and other objects in view, the invention further includes the following novel features and details of construction, to

trated in the accompanying drawings and pointed out in the appended claim.

In the drawings Figure l is a front elevation of the holder front face and one from the rear face.

Figure 2 is an edge view of the same with the lower fuse shown by dotted lines.

Figure 3 is a vertical sectional view.

Figure 4 is a perspective View looking at the front face of the holder with the fuses loaded from opposite sides.

Figure 5 is a rear perspective view of the holder per se.

Figure 6 is a fragmentary perspective view showing one corner of the front face of the holder.

Figure 7 is a similar view looking at the rear face.

Figure 8 is a perspective view showing the holders nested.

Figure 9 is a section on the line 99 of Figure 8.

Figure 10 isa plan view of a piece of stock illustrating the three operations performed when making the holder.

Referring to the drawings in detail whereinlike characters of reference denote corresponding parts the reference character 10 indicates a'plate whichlmay be made ofany suitable material, such as tin or other material havinglike characteristics. This plate 10 is provided with s paced openings 11 and extending around each of these openings is a spirally arranged offset flange 12 which is interrupted as-shown at 13. The flange 12 forms a single thread which conforms to the standard thread of fuses 14, theends 15 and 16 defined by the interrupted portion .13 forming starting points to engage the threads of the fuses 14. When the fuses are inserted fromthe front face of the holder, the fuse threads first engage the point 15 sothat rota-J tion of: the fuse will cause the latter to travel inward through the opening 11 where it will beaccurat-ely held in place, but may be quick-l ly and. easily removed.' The holder may be loaded from the reverse or rear face, the threads of the fuse first engaging the point 16.

The plate 10 is provided with right angularly arranged reinforcing ribs 17 which are located'between the openings 11 so that the plate may be made of relatively thin material without bending or buckling.

The, top of the plate is provided with an opening 18 by means of which it maybe hung from a suitable support.

If desired, the plate may be provided with suitable advertising matter so that the device will afford a valuable advertising medium. The holder may be sold separately, or may be sold loadedwith fuses and will afford a valuable andhandy medium for keeping the fuses in a convenient place for use.

The design of the device is such that it can be produced in quantity with a progressive die in which the article is punched, formed and blanked at a single stroke, as clearly shown in Fi re 10 of the drawings. In referring to this figure which illustrates a piece of material from which a single completed article has been made with the stock progressing through the die in the direction of the arrow, it is apparent that the first stroke of the die performs operation #1 namely punching,.and as the stock is fed, the second stroke performs operation #2, that of forming, while the third stroke performs operation #3, blanking. The three operations being simultaneous, it is clear that after the first two operations, the third and each succeeding operation of the press delivers a completed article.

Themeans for retaining the plugs in the holder has many advantages, among which are the following. It will accommodate all makes of plug fuses equally well, and is not affected by the variation of shape and form found in the different makes of fuses, as the screw shell portion of all fuses of this type are made to an accepted standard in the industry.

The act of insertingor removing a fuse by rotation is the same as inserting or removi a fuse from the fuse block itself, and is t erefore quite natural, enabling one to re move the fuse, without fumblin under adverse conditions, even in the dar as ally, the case when a replacement fuse is required. .The spiral rib in the holder being relatively rigid is in comparatively loose mechanioal contact with the threaded Portion of the fuse and does not depend upon an spring action or excessive friction for 1101 ing the fuse in place. Therefore, the eflectiveness of utility of the device is not impaired even by constant use. The device is practical! fr e from any trouble that may arise from busy or high ro'ections, as the all t projection formed y t e open spiral on t e rearof the holder, owing to their peculiar shape are strong and not easily damaged when packing orshl ping. In fact, these rigid projections are a stinct advantage in packing or shipp ng, as they cause the articles to register piroperly, one within the other, and stack c ogegy when packed as shown in Figures 8 an invention is susceptible of various changes in its form, proportions and minor de'ta s of construction and the right is herein reserved to make such changes as pro erly fall within the scope of the appended c aim. Having described the invention what is claimed 1s A fuse holder formed from a single sheet of material having spaced circular shaped openings therein, an offset spirally arranged flange extending substantially around each JOHN A. WEVER.

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