FREE BOOKS

Author's List




PREV.   NEXT  
|<   42   43   44   45   46   47   48   49   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66  
67   68   69   70   71   72   73   74   75   76   77   78   79   80   81   82   83   84   85   86   87   88   89   90   91   >>   >|  
the many excellent wood-working machines now in use. A boring machine, though one of the simplest, is by no means an unimportant adjunct to a full outfit of wood-working machines. The one shown in our engraving is one of the most complete ever brought to our notice, and the great variety of work it is capable of performing, renders the name chosen for it peculiarly applicable. It is called the "Universal Boring Machine" because the most prominent feature of its construction is its power to bore a hole in any desired angle with the axis of the bit. Any sized bit required is inserted into the chuck, which is adjustable to fit large and small shanks. The mandrel which carries the chuck is made to traverse by a foot lever, so as to bore any depth up to twelve inches. The mandrel is driven by belt from a cone pulley of three faces, which gives the proper speeds for different sized bits. Slots and stops upon the table enable the work to be set at any desired angle on the horizontal plane, while the table can be set on an incline to any angle not exceeding forty-five degrees. The table is twenty-one inches wide, with fifteen inches slide, and it can be raised or lowered fifteen inches. The countershaft rests in self-adjusting boxes, and has a tight and a loose pulley eight inches in diameter. The traversing mandrel is of the best quality of steel, and the machine is otherwise made of iron in a substantial manner. [Illustration: McBETH, BENTEL, & MARGEDANT'S UNIVERSAL BORING MACHINE.] The several adjustments enable the operator to do all kinds of light and heavy boring, with ease and with great rapidity. This machine was awarded the first premium at the Cincinnati Industrial Exposition, in October, 1870, and was patented through the Scientific American Patent Agency, Aug. 16, 1870. It is manufactured by McBeth, Bentel and Margedant, of Hamilton, Ohio, whom address for machines rights to manufacture, or other information. * * * * * COMBINED TRUNK AND ROCKING CHAIR. A unique invention, calculated to increase the comforts of travellers on steamboats, ships, and in crowded rooms of hotels, is illustrated in the engraving published herewith. It is the invention of T. Nye, of Westbrook, Me., and was patented by him, June 18, 1867. It is a combined trunk and rocking chair. The rockers are made to fold into recesses, where they are retained by suitable appliances till wanted.
PREV.   NEXT  
|<   42   43   44   45   46   47   48   49   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66  
67   68   69   70   71   72   73   74   75   76   77   78   79   80   81   82   83   84   85   86   87   88   89   90   91   >>   >|  



Top keywords:
inches
 

mandrel

 

machines

 

machine

 

fifteen

 

desired

 
invention
 

enable

 

pulley

 
patented

boring

 

working

 

engraving

 

Exposition

 
manufactured
 

Agency

 

Industrial

 
American
 

Patent

 

Cincinnati


October

 

Scientific

 
MARGEDANT
 

BENTEL

 

UNIVERSAL

 

BORING

 
McBETH
 

Illustration

 
substantial
 
manner

MACHINE

 

rapidity

 

awarded

 

adjustments

 

operator

 

premium

 

combined

 

Westbrook

 

published

 
herewith

rocking
 

suitable

 

retained

 

appliances

 
wanted
 

rockers

 

recesses

 
illustrated
 

hotels

 

manufacture