Abstract:
Headgear such as a cap for use in dark and very confined spaces having a light attached to its visor in a manner that the light beam is parallel to the central axis of the visor and to the plane of vision of the wearer.

Description:
BACKGROUND 
     This invention relates to caps and other types of headgear which are worn in dark places. 
     SUMMARY 
     This invention relates to caps and similar head covers (“headgear”) which are worn by persons who work in or are otherwise engaged in activities in dark places. 
    
    
     BRIEF DESCRIPTION OF THE DRAWING 
     The drawing is a schematic view in side elevation of a preferred embodiment of the present invention. 
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
     Many persons work in the dark, including telephone installers and repair persons who often must go into underground tunnels and repair or install the lines. These tunnels are not lighted and, therefore, a source of light is needed. 
     If the underground place is large enough, it is often possible to use standard work lights powered by batteries or via AC cord (when an AC outlet is near). These standard lights are placed on the ground or hung from overhead. 
     However, there are many situations where the tunnel is narrow and very long, such as hundreds of years long, and where no AC source is available. Further, there is no room in such places for placement of the large, standard lights described and such standard lights cannot be conveniently carried because of lack of space and also because the worker must use both hands to perform various tasks, such as repairing or installing telecommunication cables or similar lines. This can be called the “narrow tunnel” situation for these purposes. 
     In the “narrow tunnel” case, therefore, the worker must have a source of light. Because his or her hands are both needed, the light must be on the worker. 
     Miner&#39;s helmets, of course, are well known as one approach to this problem. However, such helmets are not, it is believed, mounted on a plane parallel with the helmet visor and thus do not shine precisely where the miner is working, but just illuminate the general area. 
     However, in the case of telecommunications workers described, the tasks they must perform in the “narrow tunnel” confined spaces require very intense light focused where they are looking, since they are attempting to deal with very small wires, screws, fasteners. In such “narrow tunnel” circumstances, it is vital that the worker have a light which focuses its beam parallel to the eyes of the worker. 
     I have discovered that this technical problem can be solved by means of the present invention. 
     Thus, the drawing shows a cap generally designated  1 , which may be cloth or of rigid material. Cap  1  has a main head cover portion  2  and a visor  4  which extends from the lower periphery  3  of cap  1 . 
     Visor  4  is preferably flat and extends from the front  2   a  of the body portion  2  to an forward edge  4   a.    
     Affixed to the top of visor  4  is a fastener  5 , which is preferably Velcro and has an upper surface  5   a  for detachably connecting to another fastener. 
     The source of light is shown generally as  6  and may be any suitable light source, such as a battery flashlight. Light  6  has a essentially flat lower surface  11 . A fastener  7  has an upper surface attached to surface  11  of light  6 . 
     Fastener  7  is of material which can detachably connect with surface  5   a  and may be Velcro . Fastener  7  has a lower surface  7   a  for detachably connecting to fastener surface  5   a.    
     The fasteners  5  and  7  are preferably flat topped and serve to align the light  6  in a plane parallel to the preferably flat plane of visor  4  which results in the desired configuration, namely, that the light beam is co-planar with the eyes of the person wearing the cap, so as to ensure that the light beam focuses where the eyes are looking at all times. 
     Of course, the visor may not be flat and the fasteners may also have other than flat top and bottom surfaces. However, while such arrangements can be made, it is within the scope of this invention to provide a structure wherein the light beam is parallel to the eyes by making necessary modifications to the Velcro (or other fasteners). 
     Light  6  includes an enlarged lens cover  9  attached to body  8  of the light and the lens itself is  10 . A slide switch  9  is used to turn the light  6  on and off. 
     From the foregoing, it will be understood that this invention provides an inexpensive system employing, if desired, an ordinary cap with a flat visor and uses interlocking fasteners, such as Velcro strips, to mount a flashlight so that the light beam is parallel to the visor surface.