AMERICAN INSTITUTE. 71 



tage, botli on the score of personal safety, and freedom from ob- 

 struction in various ways. Also, the saw will work with much 

 more certainty with this support than without it, where there is 

 no gate. \^A diploma awarded. 



JVo, 80. — Self-gauged Lathe for Turning all Regular Forms. 

 Albin Wai'th, corner Franklin and Centre streets. Very superior; 

 self-acting. In this lathe the cutters arc caused to take the pro- 

 per distance from the centre by means of iron guides on the 

 shears on both sides. One set of cutters in front of the central sup- 

 port takes off tlie rough, the next behind the support cuts the 

 plain surface, and the next cuts in the ornaments, while the sand 

 papers following finishes the work by the time that the turning 

 is finished. The work itself is excellent. 



l^A silver medal awarded. 



J\''o. 292. — Upholstery Shaving Machine. 

 Smith & Cowles, Amherst, Mass. Superior. The object is to 

 make shavings as a substitute for liair or moss. A horizontal 

 circular plate of about 4 feet diameter, has ten radiating slats. 

 In two of these slats are placed arms level with the surface, 

 having 70 small upright cutters to slit or scratch the surface of a 

 block of wood. These scratches are in the direction of the grain 

 of the wood, the arms being regulated by cams, so as to move in 

 a straight line while cutting. There are tlien planing cutters 

 on the same plate, so that each revolution will give 560 very thin 

 curled shavings, about one-eighth of an inch wide. 



[.y3 silver medal awarded. 



JYo. 526. — Mitre Machine. 

 Geo. W. LaBaw^, Jersey City, N. J. Excellent. This is simple, 

 effective, rapid, and makes very good work. Two knives like 

 those of a straw bench, are screwed to a cast iron frame, and from 

 a shark's bill cutter, eacli knife from the point where they join 

 sloping downward, so that in cutting the pressure is constantly 

 against the ledge in front, against which the moulding is placed 

 at equal angles with the knives. Thus the mitre can be cut from 

 either end of a short piece, or a square cut taken from the mid- 

 dle of a long piece, and the worli: is ready for immediate use 

 "without planing. This machine has also a cutter of anotlier form, 

 but the above will illustrate. 



\_A diploma awarded. 



