Page:Practical Treatise on Milling and Milling Machines.djvu/217

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INDEX TABLE 51 to 92.

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
51	17	14/17	33*	24			48	24	44
52	39	30/39	152
53	49	35/49	140	56	40	24	72
	21	13/21	142	56	40	24	72
54	27	20/27	147
55	33	24/33	144
56	49	35/49	140
	21	15/21	142
57	49	35/49	140	56			40	24	44
	21	15/21	142	56			40	24	44
58	29	20/29	136
59	39	26/39	132	48			32	44
	33	27/33	132	48			32	44
	18	12/18	132	48			32	44
60	39	26/39	132
	33	22/33	132
	18	12/18	132
61	39	26/39	132	48			32	24	44
	33	22/33	132	48			32	24	44
	18	12/18	132	48			32	24	44
62	31	20/31	127
63	39	26/39	132	24			48	24	44
	33	22/33	132	24			48	24	44
	18	12/18	132	24			48	24	44
64	16	10/36	123
65	33	20/33	121
66	33	20/33	120
67	49	28/49	112	28			48	44
	21	28/49	113	28			48	44
68	17	10/17	116
69	20	12/20	118	40			56	24	44
70	17	10/17	116
71	27	15/27	110	72			40	24
	18	10/18	109	72			40	24
72	27	15/27	110
	18	10/18
73	49	28/49	112	28			48	24	44
	21	12/21	113	28			48	24	44
74	37	20/37	107
75	15	8/15	105
76	19	10/19	103
77	20	10/20	98	48			24	44
78	39	20/39	101
79	20	10/20	98	48			24	44
80	20	10/20	98
81	20	10/20	98	48			24	24	44
82	41	20/41	96
83	26	10/20	98	32			48	24	44
84	21	10/21	94
85	17	8/17	92
86	43	20/43	91
87	15	7/15	92	40			24	24	44
88	33	15/33	89
89	27	12/27	88	72			32	44
	18	8/18	87	72			32	44
90	27	12/27	88
	18	8/18	87
91	39	18/39	91	24			48	24	44
92	23	10/23	86	24