US2143125A - Telescopic sleeve for cameras - Google Patents

Description

Jan. 10, 1939. w w.

TELESCOPIC SLEEVE FOR CAMERAS Filed June 10, 1938 HEADLEE 2,143,125

//z Inventor //7 W W/YsaaZ/se By @Mm A iiorneys Patented Jan. 10, 1939 UNITED STATES PATENT OFFICE 2 Claims.

This invention relates to a telescopic sleeve for cameras, the general object of the invention being to provide a telescopic sleeve formed of metal or the like for connecting the lens carrying part of a camera to the body part thereof in place of the usual bellows.

The general object of the invention is to provide a sleeve formed of a plurality of sections which have a sliding light-tight fit on each other so that the sleeve can be expanded and contracted as the lens carrying member is adjusted for focusing.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts to be hereinafter fully described, illustrated in the accompanying drawing and specifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to the accompanying drawing wherein like characters denote like or corresponding parts throughout the several views, and in which:-

Figure l is a longitudinal sectional view through the invention with the sleeve in extended position.

Figure 2 is a fragmentary elevation of the invention.

Figure 3 is a view looking toward the rear end of the device.

In this drawing the sleeve is shown generally at A and it includes the front sleeve part I to the front end of which is connected the front part of the camera, as shown at 2, this part being provided with the lens opening 3. The rear end of the part I is bentback upon itself or is otherwise provided with the exterior flange 4 which is spaced from the part i and extends forwardly a distance slightly beyond the transverse center of said member. Another sleeve-like part 5 of an interior area to flt over the flange 4 has an inwardly extending flange 6 spaced from the adiacent portion ofthe part 5 and this flange fits in the space between the part I and its flange l. The rear end of the part 5 has an outwardly and forwardly extending flange I which receives an inwardly extending flange 8 of another member 9 and this member at its rear end is formed with an outwardly extending flange Iii which receives between itself and the rear of the member 9 an inwardly extending flange of a member i I which is similarly connected to a. member I! and this member H has an outwardly extending flange at its rear end for receiving the inturned flange of the member l3 which is connected to the body of the camera at the front thereof. All the flanges are slightly wider and have the length of a member and the flanges engage each other in a sliding manner but tight enough to provide a light-tight joint. Thus this device can be expanded and contracted the same as a bellows of an ordinary camera which does not have the disadvantages of such a bellows and it can be formed of metal or the like so that it will outlast the rest of the camera. This invention makes for compactness, light weight and quick adjustment as the parts remain rigid throughout the distance of expansion without any other support.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts provided that such changes fall within the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. A telescopic sleeve for connecting the lens carrying part of a camera to the body part thereof comprising a front sleeve-like member having an outwardly turned flange at its rear end which extends forwardly, a second sleeve-like member having an inwardly extending flange at its front end extending rearwardly fitting in the space between the flrst flange and the first member, said second member having an outwardly extending flange at its rear end extending forwardly, other members having flanges telescopically re ceiving each other and a member connected with the body of the camera and having an inturned flange at its front end for engaging the outturned flange of the next to the last member.

2. A telescopic sleeve of the class described comprising a plurality of members each having flanges at its ends, the flange at one end extending rearwardly and the flange at the other end extending forwardly, one flange being located within the member and the other exterior of the member, said flanges being spaced from the membet and the outturned flange of one member slidingly receiving between itself and the member an inturned flange of the next member.

WILLIAM W. HEADLEE.

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