US2053784A - Watch - Google Patents

Description

Sept. 8, 1936. E, 'G, Sap 2,053,784

WATCH Filed May 31, 1935 61 l X\ 7 y L 10 9 INVENTOR:

frw'n G. 5e06,

H15 A ORNEY.

Patented Sept. 8, 1936 i UNITED STATES eAT-ENT OFFICE WATCH Ervin G. Seip, Kalamazoo, Mich.

Application May 31, 1935, Serial No. 24,167

13 Claims. (CI. 58-90) My invention relates to watches and more particularly to shock and dust protectors for watch movements and other instruments housed within cases.

The main object of my invention is to provide a dust and shock protector for watch works and the like, which is simple and economical in its parts and very efiicient and effective in operation.

Another object is to provide means in an instrument and case assembly for suspending the instrument within the case to protect the same against shock to which the case is subjected, said means at the same time providing a dust proof envelope for the instrument.

A further object is to provide improved means facilitating the assembly of a watch movement and its case.

I attain these objects by mechanism illustrated in the accompanying drawing, in which- Fig. 1 is a sectional view of a watch.

Fig. 2 is a sectional view of a modification.

Similar numerals refer to similar parts throughout the several views.

Referring to Fig. 1, I is a watch case having a bezel 2 holding the crystal 3 in place over the main plate 4 of the watch movementi. These parts, and the hands 6 of the watch are shown conventionally, certain parts being exaggerated in size for clearness of illustration.

For supporting the watch movement 5 within its case I, I provide a shock and dust protector 1, preferably formed of celluloid, the protector being in the form of a bulged envelope or receptacle, as shown, the rim 8 of the protector engaging the rim of the watch movement, in this case the periphery of the plate 4.

The back or bottom 9 of the celluloid envelope is .curved outwardly to engage the back 10 of the watch case in the area of the centre thereof at l l. The opposite side walls l2 of the receptacle are curved outwardly to engage the opposite side walls l3 of the case I substantially medially thereof.

The watch movement is telescoped within the envelope, the side walls of the latter resiliently engaging the movement to hold the same in place, and the envelope 1 is then telescoped within the case I. The envelope thus provides simple means for assembling the watch works within its case. The parts are held in place by the bezel 2 of the crystal 3. To disassemble the works requires merely the removal of the bezel and the envelope, the works thereupon being readily slipped from the case.

Referring to Fig. 2, the rim I4 of the dust and shock protector I5 is secured to the rim it of the instrument I! by a downturned flange I8 on the dial l9. This arrangement suspends the instrument within the envelope or receptacle, the bottom 20 and side walls 2| of the envelope being spaced from the instrument and'from the case 22, except at the points 23 and 24, to permit the curved walls to flex and absorb shocks to which the case is subjected.

The frictional engagement between the side walls of the case and celluloid protector is suflicient to hold the'parts in fixed assembled relation, and the contact between the rims of the instrument and protector is such that a very effective dust seal is provided for the envelope.

While I prefer to use celluloid for my dust and shock protector, this material having the desired properties of flexibility, lightness, and dust imperviousness, the protector may be made of other materials such as hard rubber, fibre, metal and the like. The ideal material is one known as viscoloid this material being resilient and transparent, and having the desired properties for my use. A transparent envelope permits the inspection of the instrument without exposing the same to dust and other foreign matter.

Viscoloid is a particularly clear and high grade of celluloid.

While my improvements are especially well adapted for watches, the invention is also applicable to meters and measuring devices wherein delicate instruments are housed within cases subject to shock.

From the foregoing description of my invention, it will be apparent to those skilled in the art that I provide a very eiiective means for assembling an instrument within its casing, said means constituting a dust proof envelope and a shock absorber for the instrument within the casing. My improvements are simple and economical, and are very eflicient and efiective for the purpose intended.

I claim:

1. The combination with an instrument, and a case therefor, of means acting to suspend the instrument within the case and to envelop the instrument in a dust proof shield, said means comprising a transparent celluloid receptacle having a convex bottom and outwardly curved side walls adapted to tangentially contact the back and side walls respectively of the case, the rim of the receptacle engaging the rim of the instrument, and the parts being otherwise spaced to allow the walls and bottom of the receptacle to flex to absorb shocks to which the case is likely to be subjected.

2. The combination with a watch movement, and a case therefor, of means acting to suspend the movement within the case and to envelop the instrument in a dust proof shield, said means comprising a flexible transparent receptacle having a convex bottom and outwardly curved side walls adapted to contact the back and side walls respectively of the case, the rim of the receptacle engaging the rim of the movement, and the parts being spaced to allow the walls and bottom of the receptacle to flex to absorb case shocks. i

3. The combination with an instrument, and a case therefor, of means acting to suspend the instrument Within the case and to envelop the instrument'in a dust proof shield, said means comprising a receptacle having a conve'xbottom and outwardly curved side walls adapted to tan.- gentially contact the back and side walls respectively of the case, the rim of the receptacle engaging the'rim of the instrument, and the parts being otherwise spaced to allow the walls and bottom of the receptacle to flex to absorb case shocks.

4. The combination with a watch movement, and a watch case for said movement, of a celluloid envelope for said watch movement adapted to keep dust therefrom, the rim of the movement engaging'the rim of said envelope so that the movement is suspended therein, the envelope being bulged to otherwise avoid touching the movement and engaging the side walls and back of said'case at spaced points, the walls and bottom of the envelope being thus left free to flex between the points to absorb shocks to which the case is subjected.

5. The combination with a watch movement,

and a watch case for said movement, of an envelope for said watch movement, the rim of the movement engaging the rim of said envelope so that the movement is suspended therein, the envelope being bulged and engaging the side walls and back of said case at spaced points, the walls and bottom of the envelope being thus left free to flex between thepoints to absorb shocks to which the case is subjected.

6. The combination with an instrument movement, and an instrument case for said movement, of a transparent envelope for said movement adapted to keep dust therefrom, the rim-of the movement being received by the rim of said envelope; the envelope being conformed to contact the side. walls and back of said case at spaced points, the walls and bottom of theenvelope being thus left free to flex between the contact points to absorb case shocks.

7. A watch comprising a case, a movement, and

. protector, the bottom of said protector engaging the back of said case only in the area of the center thereof, and the opposite side walls of the protector tangentially engaging the opposite side walls of the case, the parts being otherwise spaced to permit theprotector to flex to absorb shocks to which the case is likely to be subjected.

9. A watch comprising a case, a movement, and

a shock absorbing envelope for said movement 7 disposed within said case, the envelope being formed of imperforate flexible material shaped to receive the movement and engage only the center of the back and side walls of the case.

10. The combination with an instrument, and a case therefor, of a shock absorbing envelope for said instrument having convex walls and bottom, and the. bottom of said envelope engaging the back of said case only at a single point, and the opposite side walls of the envelope engaging the opposite side walls of the case, the parts being otherwise spaced to permit the protector to flex to absorb shocks. 7

11. The combination with an instrument and a case therefor, of a shock and dust protector for said instrument disposed within said case, said protector being in the form of a bowl and engaging the back and sidewalls of said case to provide a suspension for the instrument and consisting of flexible material adapted to absorb shocks.

12. A watch comprising a case, a movement, and a shock and dust protector for said movement disposed within said case, the protector 7 being formed of imperforate flexible material shaped to receive the movement and tangentially contact. only. the back and side walls of the case and engage the upper periphery of the movement throughout said periphery.

13. ,A watch, comprising an outer casing, a curved inner casing of celluloidin said outer casing, the back and side walls of said outer casing being in tangential contact with the inner casing, and a movementsuspended. within said inner casing from the rim thereof.

RVIN G. SEIP.

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