US198542A - Improvement in stands for magnifying-glasses - Google Patents
Improvement in stands for magnifying-glasses Download PDFInfo
- Publication number
- US198542A US198542A US198542DA US198542A US 198542 A US198542 A US 198542A US 198542D A US198542D A US 198542DA US 198542 A US198542 A US 198542A
- Authority
- US
- United States
- Prior art keywords
- magnifying
- improvement
- glasses
- stands
- legs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011521 glass Substances 0.000 title description 10
- 230000000875 corresponding Effects 0.000 description 4
- 241000858799 Erica lusitanica Species 0.000 description 2
- 235000020130 leben Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004642 transportation engineering Methods 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/002—Magnifying glasses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Description
r L. HEATH.
Stand for Magnifying Glass.
No. 198,542. Patented Dec. 25,1877.
WITNESSES g 4 'R $0 l B h-L's cltzys.
NJETERs. FHOYO UTHOGRAFHER, WASHINQTON. D O
PATENT OFFICE.
LABAN HEATH, OF BOSTON, MASSACHUSETTS.
IMPROVEMENT lN-STANDS- FOR MAGNlFYlNG-GLASSES.
Specificationforming part of Letters Patent No. 198,542, dated December 25, 1877; application filed November 30, 1877.
. To all whomz't may concern:
Be it known that I, LABAN HEATH, of Boston, in the county of Suffolk and State of Massachusetts, have invented a newand useful Improvement in Magnifying Glasses, which improvement is fully set forth in the following at any angle. 7 7 In the drawings,iFigure 1 is a side elevation of a magnifying-glass embodying my invention, its lens being brought as low as the stand will allow. Fig. 2 is a vertical section of the same, the lens being higher than in Fig. 1, andplaced at an angle. Fig. 3 is a side elevation of the samefolded for packing and transportation i Similar letters of reference indicate corresponding parts. I
i a a represent the lenses set', in the usual manner, in the frame a, which is made in a single piece. Uponfeach side of the frame a. is fixed a pin, a", which passes through and turns in the upperTends of the legs I) 0, both of which meet at that point upon each side the frame. The legs I) are connected and steadied by rods or cross-pieces b at suitable points, and the legs 0 by similar rods 0. Pivotedor hinged by the pin d to the leg I) is the slotted curved bar d, while attached to the corresponding leg 0 is a pin, 0, which runs in the slot in the curved bar 01. There are, of course, two bars, d, extending from the two legs b to the opposite legs 0, and connected by the rod 01.
Thus, it will be seen that if the lens is to be raised so as to be brought farther from the object to be examined, (which lies beneath it,) the legs b c are brought nearer together, or Vice versa; and by means of the pins a in the frame a the lens can be tipped at any angle, so as not to necessitate the moving of the object examined.
The device can be folded into a small space for packing, as seen in Fig. 3.
Having thus fully described my invention, what I claim and desire to secure by Letters Patent, is-
The combination of the lens-frame a, piv-
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US198542A true US198542A (en) | 1877-12-25 |
Family
ID=2267949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US198542D Expired - Lifetime US198542A (en) | Improvement in stands for magnifying-glasses |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US198542A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3029694A (en) * | 1959-09-29 | 1962-04-17 | Dantzic Morris | Optical inspection accessory |
| US4089592A (en) * | 1976-02-09 | 1978-05-16 | Wave-Rider, Incorporated | Microscope |
-
0
- US US198542D patent/US198542A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3029694A (en) * | 1959-09-29 | 1962-04-17 | Dantzic Morris | Optical inspection accessory |
| US4089592A (en) * | 1976-02-09 | 1978-05-16 | Wave-Rider, Incorporated | Microscope |
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