FREE BOOKS

Author's List




PREV.   NEXT  
|<   169   170   171   172   173   174   175   176   177   178   179   180   181   182   183   184   185   186   187   188   189   190   191   192   193  
194   195   196   197   198   199   200   201   202   203   204   205   206   207   208   209   210   211   212   213   214   215   216   217   218   >>   >|  
d. A better way, and one which will permit the use of heavier metal, is to cut each side of the shade separately and fasten them together by riveting a piece of metal over each joint. The shape of this piece can be made so as to accentuate the rivet heads and thus give a pleasing effect. For art-glass the metal panels are [Illustration: The Completed Lamp] cut out, the glass is inserted from the under side and held in place by small clips soldered to the frame of the shade. Pleasing effects are obtained by using one kind of metal, as brass, and reinforcing and riveting with another metal, such as copper. [Illustration: METAL SHADE--Construction of Shade] ** Illuminating a Watch Dial at Night [149] This picture shows a watch holder, with a device to receive an ordinary electric pocket lamp and battery. The battery is set in a bracket under which a reflector extends downward to throw the light on the dial of the watch and to protect the eyes from the direct light. The entire stand and bracket are made from sheet metal. The base is formed to make a tray to hold pins and collar buttons. It is not necessary to seek in the darkness for a push button or switch, as in ordinary devices, but a light pressure with the palm of the hand will make the lamp glow. [Illustration: Lamp] ** Home-Made Photographic Copying Stand [149] The difficulties of bad lighting on small articles can be entirely avoided by the use of a suitable support for the camera, the object and the background. [Illustration: Secures Good Light on Small Objects] For illustrations it is often an advantage to show an object with a perfectly plain background and no deep shadows. When using the stand as illustrated this is a very simple matter. Figure 1 shows the side, and Fig. 2 the front view of this stand. The stand is very easily constructed from pipe and pipe fittings. The main pipe of the stand will need to be of proper length to suit the focus of your camera. This can be determined by finding the length from the lens to the object after the bellows are extended to their full length. The arms holding the glass, as shown in the sketch, should be set at a point about the middle of the main tube. The cross that holds the middle arms should be 3/4 in. one way and 1/2 in. the other. This will allow for adjustment of the glass table. A small set screw provided in the back of this cross will hold the table in any position desired. Th
PREV.   NEXT  
|<   169   170   171   172   173   174   175   176   177   178   179   180   181   182   183   184   185   186   187   188   189   190   191   192   193  
194   195   196   197   198   199   200   201   202   203   204   205   206   207   208   209   210   211   212   213   214   215   216   217   218   >>   >|  



Top keywords:

Illustration

 

length

 
object
 

camera

 

battery

 
bracket
 

ordinary

 

background

 

riveting

 

middle


advantage

 

shadows

 
illustrated
 

perfectly

 
lighting
 
articles
 
difficulties
 

Photographic

 

Copying

 

avoided


suitable

 

Objects

 
illustrations
 

Secures

 

support

 

desired

 
position
 

matter

 

determined

 

finding


proper

 

holding

 

bellows

 

extended

 

adjustment

 

Figure

 

sketch

 
provided
 

simple

 

constructed


fittings

 

easily

 
entire
 
soldered
 

Pleasing

 

Completed

 

inserted

 
effects
 

obtained

 

copper