STANDARD - Survey Instrument Antique Center!

Recommendations

Info

RIBBING PARTS OF INSTRUMENTS. Patrons will notice the omission in this edition of illustrations of the practice of ribbing and construction of parts of our instruments to gain strength and lightness. We omit the illustrations of these improvements, introduced by us since 1871, because now they are in common use. The cuts in this catalog show the lines on which we are advancing these improvements to an extent hitherto unknown. ALUMINUM. We omit cuts in former editions of parts of instruments made of aluminum alloys, because said cuts do not express the wider range of use to which these alloys are being applied by us today to instruments of special design for special purposes. Nevertheless, in the present state of these alloys it is incumbent upon us to say that the opinion ex- pressed in Part I of this catalogue must still gener- ally be adhered to. These alloys, in the construction of field instruments, must be used with extreme caution and judgment to give satisfaction. 104
Page 1:
ENGIN. LIBRARY UC-NRLF STANDARD INS
Page 9 and 10:
PREFACE. THE instruments enumerated
Page 11 and 12:
DESCRIPTION OP THE Essential Featur
Page 13 and 14:
Tangent Screws. These are made of A
Page 15 and 16:
The Finish. It is a well-known fact
Page 17 and 18:
11 whatever. As a rule more harm th
Page 19 and 20:
13 has sufficiently developed to im
Page 21 and 22:
15 ordinary instruments, but it mus
Page 23 and 24:
17 frame, and apply another drop of
Page 25 and 26:
19 The finer and finest classes of
Page 27 and 28:
21 applied with an adjusting pin ab
Page 29 and 30:
23 adjustment of the telescope in t
Page 31 and 32:
25 Owing to the many improvements m
Page 33 and 34:
27 Engineers 9 Instruments and Thei
Page 35:
ITrfpodfead 2 // Bolt 3 // >/ Mf J
Page 38 and 39:
In practice, however, many engineer
Page 40 and 41:
34 The Pancratic, or Changeable Pow
Page 42 and 43:
the 130 division, and moved on unti
Page 44 and 45:
38 Graduation Reading to 2O". A 15
Page 46 and 47:
Decimal Vernier Graduation. For rai
Page 48 and 49:
HORIZONTAL CIRCLE HORIZONTAL CIRCLE
Page 50 and 51:
44 line of collimation of the teles
Page 52 and 53:
46 Obviously then, the number of wh
Page 54 and 55:
48 Gradienter Screw Table I. Factor
Page 56 and 57:
50 The subjoined table affords a re
Page 58 and 59:
52 Plumbing and Centering Arrangeme
Page 60 and 61: 54 To make the adjustment for Paral
Page 62 and 63: 56 capstan-headed screw at left to
Page 64 and 65: 58 To adjust the line of collimatio
Page 68 and 69: 62 The Adjustment of the Wye Level.
Page 70 and 71: On slightly rising ground locate fo
Page 72 and 73: (5.) Astronomical Triangle. The hei
Page 74 and 75: 68 From the -(- sign of the " diffe
Page 76 and 77: 70 Degree of Precision Required. (1
Page 78 and 79: 72 tions for refraction, using the
Page 80 and 81: 74 Correction to the Mean Refractio
Page 82 and 83: 76 Table H. Coefficients showing th
Page 84 and 85: 78 To Find the Meridian from " Pola
Page 86 and 87: 80 REMARKS. If the instrument is no
Page 88 and 89: 82 These devices are being more and
Page 90 and 91: 84 c. Directions. For finding the S
Page 92 and 93: 6. Directions. For reducing the nor
Page 94 and 95: 88 On Stadia Measurement. Written e
Page 96 and 97: 90 included between this and the ot
Page 98 and 99: 92 Jug, R, of the rod AB is the dif
Page 100 and 101: 94 gent screw of the main telescope
Page 102 and 103: 96 zero when plates are leveled up
Page 104 and 105: i I * 2 I! all 35 e 5c u fcc - = H
Page 106 and 107: 100 Berger Short Focus Lenses. A se
Page 108 and 109: 102 NOTE. In selecting instruments
Page 113: G- H
Page 117: The Berger Complete Mine Transit No
Page 121 and 122: O CD O DC ii si < D ft 111 Id ^ CD
Page 123 and 124: 117
Page 125 and 126: Code word . . Oakadum. 119 Spirit-L
Page 127 and 128: 19.1 Tripods for the Engineers' and
Page 129 and 130: 123 C. I,. BKRGEK & SONS. BOSTON Ro
Page 131 and 132: H i r * 2 5 "* i H } if if IM s ! 1
Page 133 and 134: 5 S- 16-inch Inverting Telescope 12
Page 135 and 136: -inch erecting telescope 129 C. L,.
Page 137 and 138: I ft I 131 C. L. BEKGER & SONS Code
Page 139 and 140: 133 C. I* BEHGKK & SONS. BOSTON Cod
Page 141 and 142: 135 Oode Words for Wye levels. 18 i
Page 143 and 144: 3 S3- 137 C. L. BEKGEB & SONS. Code
Page 145 and 146: 139 C L. BERGER & SONS' ENGINEERS'
Page 147 and 148: M H 3 141
Page 149 and 150: 143 The Berger Geodetic Level.
Page 151 and 152: o o I 145 C. L,. BEBGEK & SONS.
Page 153 and 154: 147 C. L. BEKGEK & SONS.
Page 155 and 156: No. 1. in. at edge of graduation.)
Page 157 and 158: No. 1 b. in. at edge of graduation.
Page 159 and 160: . 1 b. In. at edge of graduation.)
Page 161 and 162:
155 Special Vertical Circle. A 5 J-
Page 163 and 164:
No. 1 d. As made by C. L. Berger &
Page 165 and 166:
No. 1 g. in. at edge of graduation.
Page 167 and 168:
. at edge of graduation.) 1G1 C. L.
Page 169 and 170:
Patented. (6J4 in. at edge of gradu
Page 171 and 172:
No. 5 1/2 . in. at edge of graduati
Page 173 and 174:
167 C. L. UKlttiKK, & SONS. BOSTON
Page 175 and 176:
No. 2. n. at edge of graduation) 16
Page 177 and 178:
171 C. L. BERGER & SONS. Surveyors'
Page 179 and 180:
173 The Berber Solar Attachment. A.
Page 181 and 182:
175 C. 1. BERGEK & SONS. Fig. 2. Fi
Page 183 and 184:
C. L. BEKGEK & SONS. in. at edge of
Page 185 and 186:
No. n. at edge of graduation). 179
Page 187 and 188:
NO. iii. at edge of graduation) 181
Page 189 and 190:
No. 4 (4 in. at edge of graduation.
Page 191 and 192:
No. 4b. (4 in. at edge of graduatio
Page 193 and 194:
No. 4k in. at edge of graduation).
Page 195 and 196:
189 Diaphragm showing arrangement o
Page 197 and 198:
13 191 Fig. 9. Leather ease with sh
Page 199 and 200:
Counterpoise. Complete Mining Trans
Page 201 and 202:
11)5 Complete Wet-Mine Transit. No.
Page 203 and 204:
197 Code Word Beaman. NbiiliiM.Ji P
Page 205 and 206:
The Fully Enclosed Vertical Circle
Page 207 and 208:
201 Stride Levels Resting on Specia
Page 209 and 210:
The Berger Bracket for Transit or L
Page 211 and 212:
205 Patented. The Berger Lateral Ad
Page 213 and 214:
207 The Berger Tunnel Tripod Patent
Page 215 and 216:
209 Mining Transit interchangeable
Page 217 and 218:
No. lOb Tunnel Transit With three l
Page 219 and 220:
213 No. 11C, Complete Transit-Theod
Page 221 and 222:
215 No. llf. Complete Transit- Theo
Page 223 and 224:
217 No. llm. 7-inch Complete Transi
Page 225 and 226:
As made l>y C. L. Berger & Sons 211
Page 227 and 228:
221 No. 12. 8-inch Transit for Tria
Page 229 and 230:
223 No. 15 a. Alt.-Azimuth . Alt.-A
Page 231 and 232:
225 Portable 2" Time Transit Instru
Page 233 and 234:
227 Portable Astronomical Transit I
Page 235 and 236:
229 Sextant. Sextant. Radius, 7 inc
Page 237 and 238:
231 Current Meter No. IV. As made b
Page 239 and 240:
For the convenience of our customer
Page 241 and 242:
No. 115. Surveyors' Pocket and Mari
Page 243 and 244:
Leveling- Rods The leveling' rods i
Page 245 and 246:
239 Steel Tape Measures. i/2 inch w
Page 247 and 248:
241 Lucas's Improved Steel Tapes. %
Page 249 and 250:
Jtfo. 195. Surveyors' Chain, 2 pole
Page 251 and 252:
245 Pocket Magnifiers. No. 221 No.
Page 253 and 254:
247 NEW PARTS FOR OUR TRANSITS ANI>
Page 255 and 256:
249 NOTES TO THE PRECEDING LIST OF
Page 257 and 258:
1 . L. BEKGEK & SONS. INDEX PAGE Ab
Page 259 and 260:
Tangent Screws PAGE 7 Tape Repairer
Page 261 and 262:
00 3 Q ss o: in u s!- < o cc a O CO
Page 263 and 264:
III z p o o III o o CO o (0 4 a u o
Page 265 and 266:
Z o ui o oo oo Z o 0)
Page 267 and 268:
These prices do not include bag ($1
Page 269 and 270:
O u D O ? bi O o o CO Z o ft u o tt
Page 271 and 272:
o ill U QOO cb O CO III a CO U OOOO
Page 273 and 274:
Ill D OO Z o 0) ft U oK III tt
Page 278 and 279:
THIS BOOK IS DUE ON THE LAST DATE S
show all

STANDARD - Survey Instrument Antique Center!

Create successful ePaper yourself

Delete template?

Save as template?