US2412262A - Cover - Google Patents

Description

Dec. 10, 1946. w. HALPERN ET AL 2,412,262

COVER Filed April 21, 1944 3 Sheets-Sheet 1 IN VEN TORS Mu /4M #44 FEE/V By K u/er WEI/v52 ,Q udalf Meow/m2 A TTORNEYS.

1946. w. HALPERN ET-AL 2 COVER Filed April 21, 1944 5 Sheets-Sheet 2 INVENTORS Nil/mm HALPERN UR 1' kLE/NEK BY Rumou ROL'HMAL Mow 5w Dec. 10, 1946. w. HALPERN ET AL COVER Filed A ril 21, 1944 3 Sheets-Sheet 5 FIE 7:

a 5 R M wk mp NE C E o V R N IHE M 5 mm@ I-UU M Y B Patented Dec. 10, 1946 COVER William Halpern, New

Elmhurst, and Rudolf Krochmal, New York,

York, Kurt Weiner,

Application April 21, 1944, Serial No. 532,176

4 Claims. l

The present invention relates to covers for watch faces.

One of its objects is to provide a watch cover construction which is self-closing.

Another object is to provide a watch cover construction that automatically maintains the cover in closed position without the aid of a catch or other locking device.

A further object is the provision of a Watch cover construction which is easily opened without fumbling.

A still further object is the provision of a highly useful and ornamental watch cover opening construction which may very easily be made and which would be rather unlikely to go out of functioning order.

These and other objects are attained by mechanism comprising a pivoted watch face cover, a tensioning member operating to keep the cover in closed position on the watch, and an engaging member-generally a lever-to engage the watch cover and to raise it to its open position against the action of the tensioning member.

Preferred embodiments of the invention are shown in the drawings in which Figure 1 is a side view of a watch incorporating the constructional features of one of said embodiments, showing the face cover thereof being manually held in raised or open position;

Figure 2 is a side view of the same watch showing the face cover in released or closed position;

Figure 3 is a side view of a modification of the construction shown in Figures 1 and 2.

Figure 4 is a top view of the same.

Figure 5 is a bottom view of the same.

Figure 6 is a longitudinal Vertical section of the same.

Figure 7 is a horizontal section along the line 'l'! of Figure 6.

Figure 8 is a vertical section along the line 8-8 of Figure 6.

Referring to Figures 1 and 2 watch case I is provided with a hinged face cover i I whose pivot or hinge pin l2 may be disposed on an axis parallel to the axis of the winding stem I3. Cover II is larger in width and length than watch case Ii].

A coil spring I4 which is wound around pivot pin l2 engages cover H and watch case Ill and acts to keep cover ll tight against Watch case ID. A lever I which i pivoted, by means of a pivot pin It to frame work I! in which the watch case I0 is set, engages with one end 18 the under surface of the over-hanging portion IQ of cover II. The other end 20 of lever 15 is intended to be pressed down with the finger, thereby causing its opposite end is to become elevated and thereby to raise cover H against the action of spring [4. Projecting piece 2| of framework l1 engages lever end 213 when the latter is fully released and when lever end It is in contact with over-hanging cover portion 19. Over-hanging portion i9 prevents, by virtue of the tension of spring i l, upward movement of lever end i8. Projecting piece 2! prevents upward movement of lever end 29. Lever I5 is thus rendered immobile. The lever [5 has the shape substantially of a bar, of which at least the inner end it is curved in the plane of rotation about the pivot pin l6 so as partially to circumscribe the pivot pin l2 of cover ll while engaging the under side of cover I i. As the outer end 23 is depressed and the inner end l8 approaches the pivot pin l2, the area included within the curved end portion L8 thereby comes to include the pivot pin [2. The circumscrioing construction of the inner end portion l8, whereby it extends outwardly from cover pivot l2 of a straight line between the lever pivot pin it and the point of contact with cover H, thus permits considerable displacement of the opposite end portions, I8, 2% within a relatively small space, combining mechanical compactness with novel and graceful appearance. By mounting lever H5 at a distance from case [0 additional leverage is furnished at the operative tip of inner end it.

In the embodiment of the invention shown in Figures 3 to 8 inclusive, the single lever l5 has been replaced by the duplex lever 150, comprising levers 15a and IE1), similar in all essentials to lever 15, and mounted on pivot if: on opposite sides of the case Ill. A tie bar 280 rigidly joins together the ends 20a and Zllb of lever I50. Pressure on either 26a or 2% now serves to depress both.

Advantages of this construction over the previous disclosure include an equalizing of strain on the pivots l2 and i6 and their bearings, and symmetrical appearance.

The tiebar Ziic is shown most clearly in Figure 5. It will be understood that the tiebar is not readily apparent and its omission would not destroy the symmetrical appearance. If it were omitted the cover Ila could still be raised by pressure on either 20a, or 2% as in the first disclosure,

Figure '7 illustrates the cover pivot 12 and spring M in open position, an arrangement used in the first, second and fourth forms of this invention, as indicated by the numerals ascribed to the fragmentary cover.

Figure 8 shows the cover and. case in vertical 3 transverse section, including a downward extension We; of the over-hanging portion 19.

It is apparent that the constructions shown above have been given solely by way of illustration and not by way of limitation, and that the illustrations above described are subject to wide variations and modifications within the scope and intent of the present invention. All of such variations and modifications are to be included within the scope of the present invention.

What is claimed is:

r1. A watch face cover construction comprising, in combination with a watch case, a cover pivotal ly mounted on said case and comprising a portion overhanging said case, a spring acting upon said cover to maintain the same in closed position, and a substantially bar shaped lever, said lever having an inner portion adapted to engage said overhanging portion to open said cover, said inner portion extending from the pivot pin of said lever to said overhanging portion outwardly of a straight line between said pin and the point of contact of said lever with said overhanging portion and being curved substantially in the plane of rotation of said lever and partially circumscribing the pivot pin of said cover when the lever is depressed and the cover is raised.

2. A watch face cover construction comprising, in combination with a watch case, a cover pivotally mounted on said case and comprising a portion overhanging said case, a spring engaging said cover directly to maintain the same in closed position, and a substantially bar shaped lever, said a cover directly to maintain the same in closed position, and a substantially bar shaped lever, said lever being mounted at a distance from said case and having an inner portion adapted to engage said overhanging portion to open said cover, said inner portion being curved substantially in the plane of rotation of said lever and partially circumscribing the pivot pin of said cover when the lever is depressed and the cover is raised.

. 4. A watch face cover construction comprising, in combination with a watch case, a cover pivotally mounted on said case and comprising a portion overhanging said case, a spring arranged to normally maintain the cover in closed position, and a pivotally mounted lever, said lever having an inner portion adapted to engage said overhanging portion to open said cover, said inner portion being curved substantially in the plane of rotation of said lever and partially circumscribing the pivot -pin of said cover when the lever is depressed and the cover is raised.

WILLIAM HALPERN.

KURT WEINER.

RUDOLF KROCHMAL.

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