Report of Judges. IQX 



We heartily indorse this as the best forge and tuyere with 

 which we are acquainted, and recommend it to the honors of the 

 Institute. 



No. 1216. Planer and Lathe Tool Holder. (Cooper & Philips.) 

 Its merits are, simplicit}^ of construction; a firm grip on the tool, 

 so that it will not chatter in use; duplication in manufacture, so 

 that worn or broken i3arts can be replaced; in thread cutting for 

 taps, the angle once made does not vary till the tool is used up; 

 and savins: in steel and labor in foro;in<r. We commend this device 

 to first class honors, as being one of the most important in the 

 economy of the machine shop, and a helper in more perfect work. 



No. 1014. Tool Holder. (T. L. Wel^ster.) These tool holders 

 are adapted to planing surfaces on the under edge, such as the 

 grooves in planing machine tables, and for cutting slots, as long 

 key seats in cranks, &c. The object is to prevent the drag of the 

 cutting point on the back motion. These devices effect this very 

 simply and surely. We therefore commend first class honors. 



No. 74. Tool for Qitting off and Threading Pipe. (Webster 

 & Co.) Its merits consist in strength and simplicity, and provision 

 for easily replacing broken cutters. We commend it as a good tool. 



No. 868. Drill Chuck. (G. W. Harris.) This chuck is less 

 liable to get out of order, and is more solid than other chucks of 

 this same general class. The tightening device also is superior, on 

 account of its greater bearing on the movable jaws. We, there- 

 fore, commend it to favorable consideration. 



No. 287. Valve Refitting Machine. (C. F. Hall & Son.) Its 

 merits are, simplicity of construction, and truth of action, allowing 

 valves and seats to be refitted with entire accuracy, and with little 

 labor. We highly recommend this machine. 



No. 590. Compound Lever Cut Nippers. (Hall & Gifford.) It 

 is an exceedingly well made tool, and of good material, and its 

 lever arrangement gives great power, and enables it to cut much 

 larger wire without risk of breakage than the cut nipper of usual 

 construction. It is manufactured upon the system of duplication, 

 which allows the replacing of any parts that may break. We 

 commend it as an improvement of merit, and a first class tool. 



No. 337. Boilermakers' Tools. (Thomas Prosser & Son.) Its 

 merits are the completeness of the collection, which comprises 

 cutters, reamers, countersinks, and swedges for expanding the tubes; 

 scrapers, both spring and spiral, and brushes for- cleaning boiler 

 tubes. 



