Page:Practical Treatise on Milling and Milling Machines.djvu/221

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INDEX TABLE 215 to 270.

Number of Divisions	Index Circle	No of Turns of Index	Graduation	Gear on Worm	No. 1 Hole		Gear on Spindle.	Idlers
					1st Gear on Stud.	1st Gear on Stud.		No. 1 Hole	No. 2 Hole
215	43	8/43	35
216	27	5/27	36
217	21	4/21	37	48			64	24	44
218	16	3/16	36	64			56	24	44
219	21	4/21	37	28			48	24	44
220	33	6/33	35
221	17	3/17	33	24			24	56
222	18	3/18	32	24			24	56
223	43	8/43	35	86	48	24	64		24
224	18	3/18	32	24			64	44
225	27	5/27	36	24			40	24	44
226	18	3/18	32	24			56	44
227	49	8/49	30	56	64	28	72
228	18	3/18	32	24			48	44
229	18	3/18	32	24			44	48
230	23	4/23	34
231	18	3/18	32	32			48	44
232	29	5/29	33
233	18	3/18	32	48			56	44
234	18	3/18	32	24			24	56
235	47	8/47	32
236	18	3/18	32	48			32	44
237	18	3/18	32	48			24	44
238	18	3/18	32	72			24	44
239	18	3/18	32	72	24	64	32
240	18	3/18	32
241	18	3/18	32	72	24	64	32		24
242	18	3/18	32	72			24	24	44
243	18	3/18	32	64			32	24	44
244	18	3/18	32	48			32	24	44
245	49	8/49	30
246	18	3/18	32	24			24	24	44
247	18	3/18	32	48			56	24	44
248	31	5/31	31
249	18	3/18	32	32			48	24	44
250	18	3/18	32	24			40	24	44
251	18	3/18	32	48	44	32	64		24
252	18	3/18	32	24			48	24	44
253	33	5/33	29	24			40	56
254	18	3/18	32	24			56	24	44
255	18	3/18	32	48	40	24	72		24
256	18	3/18	32	24			64	24	44
257	49	8/49	30	56	48	28	64		24
258	43	7/43	31	32			64	24	44
259	49	7/49	26	24			72	44
	21	3/21	28	24			72	44
260	39	6/39	29
261	29	4/29	26	48	64	24	72
262	20	3/20	28	40			28	44
263	49	8/49	30	56	64	28	72		22
264	33	5/33	29
265	49	7/49	26	56	40	24	72
	21	3/21	28	56	40	24	72
266	49	7/49	26	32			64	44
	21	3/21	28	32			64	44
267	27	4/27	28	72			32	44
268	49	7/49	26	28			48	44
	21	3/21	28	28			48	44
269	20	3/20	28	64	32	40	28		24
270	27	4/27	28