No. 129.] 103 



JOB PRINTING PRESS. 



Mr. George P. Gordon exhibited a Press, patented in 1851j 

 designed for small job printing, which did its work admirably. 

 It is capable of printing 1 ,500 impressions per hour, and is adapted 

 to print from a single line to a form the size of half a foolscap 

 sheet. It is worked with the foot on a treadle, or steam may be 

 used. The space occupied by it is three feet square, rising about 

 four feet from the floor. 



The platten of this press presents itself directly in front of the 

 operator, nearly in a horizontal position, upon which the paper 

 to be printed is laid. The platten has a rotating and reciproca- 

 ting motion, that is, it has a quarter revolution, which brings the 

 platten into a vertical position directly opposite to the form and 

 point of impression, and then a return motion, which brings it 

 again to its horizontal position. This motion is communicated 

 by means of a cam, sectional arm, and its own segment geared 

 with the sectional arm, causing the platten to move in the arc of 

 a circle when passing from its position where the sheet is placed 

 upon it, to that where it receives the impression. 



The bed vibrates, and is fixed upon its own axis, so that it may 

 recede into the proper position for receiving the inking rollers on 

 the face of the form. Its position is vertical, standing parallel to 

 the face of the platten when the toggle is straight and the im- 

 pression given. 



The rollers are held by two side arms, so combined as to form. 

 a frame to carry them, and motion is communicated both forward 

 and backward, passing twice over the form for each impression 

 during the rest of the other parts of the machine. By this ar- 

 rangement, the carriage with the ways for it to travel in, which 

 is in common use, are dispensed with. 



The inking cylinders, vibrating distributor, &c., are placed 

 upon the top of the press, so that they are constantly under the 

 eye of the operator, being convenient for cleaning, change of ink, 

 &c. The machine is operated by one person with apparent ease. 



A. 0. 



