US2325253A - Periscope - Google Patents

Description

w. E. LAGING PERISCOPE Filed Nov. 17, 1942 July 27, 1943.

4 2 Sheets-Sheet 2 WELdgz'rz INVENT R.

A TTORNEYS.

Patented July 27, 1943 Werner E. Imaging, sprin'gvalieyjlliihniI Applicationllovember 17, 1942, Serial No. 465,89ii

1 Claim. Y (or. 88-71) The device forming the subject matter of this application is a periscope, and one object of the invention is to provide novel means whereby an operator, without changing his position, can see reflections of objects, one at a time, when the objects are spaced apart. The invention aims to provide a novel means whereby proper reflection gaging within the upp'erpart of the cap l0, holds theend closure l i infplacea devices of that type to which the present invention appertains.

With the above and other objects in view,-

which will appear as the description proceeds, the invention resides in the combination and struction hereinafter described and claimed, it being understood that. changes in the precise embodiment of theinvention herein disclosed, may

be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings:

Fig. 1 shows in elevation, a device constructed in accordance with the invention;

Fig. 2 is an enlarged longitudinal section, parts being broken away;

Fig. 3 is a cross section on the line t -3 of Fig. 2; 1

viewed diiTerently from the, disclosure of Fig. 1;

Fig. 6 is a circuit diagram.

A transverse and laterally open-lamp housing M is secured tothe closure Hand carries a frame l5 provided with a'socket iii, in which is mounted an electric lamp ll, adapted to shed its rays through a lateral opening I8 disposed in the cap ltl, near to the clo'sure H. A spring tongue or brush l9 issecured to the closure H .and makes end contact with the'lamp I IT. The tongue or brush it is grounded on the cap it), and there-Y fore on the body 13, as indicated at 20 in Fig. 6. 1

Side contact with the lamp H is made by means of a conductortihaving electrical connection arrangement of parts and in the details of con- The device forming the subject matter of this application comprises a'bcdy l3,v including a tubular handle I containing a battery 2, groundedon one side, as indicated at 3, to the handle, the 1 handle being provided at one end with a removable butt 4, and the handle carrying a switch 5.

The details above referred to are common flashlight structure. I

The handle l is provided with a tubular neck 6 having a circumscribing stop bead l, the neck.

being supplied'with a'lateralfpe'ep hole 8 behind which is located a first reflector a fixed in the neck 6, at a forty-five degree angle to the axis of the body B. 1

A tubular cap H3 is mounted on the neckB,

abutment against the bead l of the neck 65.

carrying a resilient, arcuate grip 12, which, en-

1 in the vouter end of thefcap l8. 2! is slack enough topermit-the closure H to be removed for the renewal of the lamp l1, and the with the socket 16, the conductor 2| being joined to a collector ring 22 secured in a cap '10, but in- I sulated. therefrom. The collector ring 22 is engaged internally by a spring tongue or brush 23, secured to. the neck 6 of the handle I, but in sulated therefrom. From the brush 23, a con-' ductor-24 leadsto one-side ofthe switch 5, and the opposite side of the switch is connected to the battery-2 byaconductorzfi. l

. Near to the illumination aperture [8, the cap til is provided with an opening 26, behind which is disposed a second reflector 21 arranged-at anangle of forty-five degrees to the axisof the body B and parallel to the reflector 9,fthe reflecting surfaces of'the members Zland 9 facing each I I other.

Fig. 4 is a fragmentalside elevation wherein parts have been broken away, other parts being 1 in section; v Fig. 5 is a side elevation wherein the device is The reflector 21 form s'a closeclrchamber reflector '27. prevents the conductor fromsagging into the line of sight through the objective opening 2&9 f

If an object to be examined is at the right hand side oithe body 25 in'Fig. 2, the object is illumij nated by the lamp ll through the opening I8.

The image or, the object .is received on the reflector 2? andis projected downwardly upon the reflector vl3, where the object can beseen bya person looking through the peep hole 8.

Ifthe object is at the left hand side of the 7 body B, in Fig. 2, the cap It) can be rotated on the neck 6 .of thexb-ody B, and inspection may proceed, as before.

The article is of peculiar utility when used in a horizontal position'gto inspect hydrants, and to look either up or down, inside of walls, to determine pwhether not there are fire-stops or other obstacles which-will prevent'the running of wires,

I pipes, fluesandithe like, between the-upper and lower floors of a finished building, or abuilding in which sight is obstructed.

The conductor ed torotate on the handle, about thelongitudinal axis of the handle, the handle having lateral peep means, the cap having a lateral objective opening,

and an illuminating aperture disposed adjacent tothe objectiveopening and close to th outer.

end ofthe cap; a first'reflector carried by the handle, at the peep means, a second reflector carried by the cap, at the objective opening, the reflectors being disposed at an angle of forty-five degrees to the longitudinal axis of the handle,the

second reflector forming a closed'chamberin the cap, at the outer end thereof, a closure removably mounted on the outer end of the cap, a transverse and laterally open lamp housing in the chamber and carried by the closure, the housing being in communication with the illuminating aperture and having a socket at its inner end, means carried by' the closure for making electrical end contact with a lamp in the socket, and means for making electrical side contact with a lamp in the socket, the last-specified means comprising a flexible conductor extended throughthe chamber and slack enough to permit the closure to be removed, the second reflector being interposed between the conduit and the objective opening.

WERNER E. LAGING.

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