US774656A - Lens-support for ground glasses on cameras. - Google Patents

Lens-support for ground glasses on cameras. Download PDF

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Publication number
US774656A
US774656A US17096303A US1903170963A US774656A US 774656 A US774656 A US 774656A US 17096303 A US17096303 A US 17096303A US 1903170963 A US1903170963 A US 1903170963A US 774656 A US774656 A US 774656A
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Prior art keywords
support
lens
cameras
ratchet
same
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US17096303A
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Hugh T Donnan
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle

Definitions

  • My invention relates to lens-supports for ground glass on cameras, the object thereof being to so construct the same that the lens may be adjusted and supported in the various positions required.
  • Figure 1 is a view of a groundglass frame with my device attached thereto.
  • Fig. 2 is a sectional view of the support, showing the ratchet portion of the same.
  • Fig. 3 is a transverse section of the support, showing the lens connected thereto; and
  • Fig. 4, a sectional view on line 4 4, Fig. 3, taken at right angles to same.
  • 1 represents the ground-glass frame; 2, the lens-support; 3, the ratchet-head of the same, and 4a spring-pawl connected by a pin 5 to a plate 6.
  • the piece 11 maybe turnedupon the pin or screw 12, thus enabling the operator to' turnthe lens to any position required.
  • 16 is a screw or pivot upon which the support is journaled; 17, screw-holes in the casing-cover Sand plate 6 for connecting the parts together and to the side of the groundglass frame.
  • the operation of the device is as follows:
  • the plates 6 and 8 are attached to the groundglass frame on camera by means of screws or the like, the spring having been placed in the same and the support either before or after placed in the same and connected by means of the screw 16.
  • the lens-handle is then placed in the clamps 13 and 14.
  • it is done by operating the thumb-piece 7 to release the ratchet when the support 2 may be turned as desired, the same automatically locking when the thumbpiece is released.
  • the clamp 10 may be slid along the support 2, and the piece 11 may be turned as desired upon the clamp 10 and the lens adjusted to any part of the ground glass.
  • a ratchet-provided support a pivot upon the ratchet end of the support, and a spring-pawl adapted to operate in connection with the same, so that the support maybe adjusted.
  • a lens-support composed of a main support for the lens, said support carrying a ratchet-head, a pivot upon which the ratchethead is journaled, a pawl operating in connection with said head, and a thumb-piece to operate the pawl.
  • a support -a U-shaped clamp embracing and adjustable on said support, U-shaped clamps to receive the lens, and a pivot connecting the clamps.
  • a lens-support composed of a main support provided with a ratchet-head, a casing for the ratchet-head, a pivot upon which the ratchet-head is journaled, a spring-operated 5 pawl to act in conjunction with the ratchet, and a thumb-piece connected with the spring for operating the same.

Description

No. 774,656. PATENTED NOV. 8, 1904. H. T. DONNAN.
LENS SUPPORT FOR GROUND GLASSES ON CAMERAS.
APPLICATION FILED AUG. 27 1903.
N0 MODEL.
7 7 7 WITNESSES INVENTOR Patented November 8 1904.
UNITED STATES PATENT ()EErcE.
HUGH T. DO-NNAN, OF ALVA, OKLAHOMA TERRITORY.
LENS-SUPPORT" FOR GROUND GLASSES oN oAMERAS.
SPECIFICATION forming part of Letters Patent No. 774,656, dated November 8, 1904.
Application filed August 27, 1903. Serial No. 170,963. (No model.)
To all whmn it may concern:
Be it known that I, HUGH T. DONNAN, a citizen of the United States, residing at Alva, in the county of Woods and Territory of Oklahoma, have invented certain new and useful Improvements in Lens-Supports for Ground Glass on Cameras, of which the following is a specification.
My invention relates to lens-supports for ground glass on cameras, the object thereof being to so construct the same that the lens may be adjusted and supported in the various positions required.
In the drawings forming a part of this specification, and in which like symbols of reference represent corresponding parts in the several views, Figure 1 is a view of a groundglass frame with my device attached thereto. Fig. 2 is a sectional view of the support, showing the ratchet portion of the same. Fig. 3 is a transverse section of the support, showing the lens connected thereto; and Fig. 4, a sectional view on line 4 4, Fig. 3, taken at right angles to same.
1 represents the ground-glass frame; 2, the lens-support; 3, the ratchet-head of the same, and 4a spring-pawl connected by a pin 5 to a plate 6.
7 is a nib or thumb-piece upon the pawl 4, and 8 a cover for the plate 6, the two plates forming a casing for the ratchet mechanism.
this construction the piece 11 maybe turnedupon the pin or screw 12, thus enabling the operator to' turnthe lens to any position required.
16 is a screw or pivot upon which the support is journaled; 17, screw-holes in the casing-cover Sand plate 6 for connecting the parts together and to the side of the groundglass frame.
The operation of the device is as follows: The plates 6 and 8 are attached to the groundglass frame on camera by means of screws or the like, the spring having been placed in the same and the support either before or after placed in the same and connected by means of the screw 16. The lens-handle is then placed in the clamps 13 and 14. When it is desired to regulate the lens, it is done by operating the thumb-piece 7 to release the ratchet, when the support 2 may be turned as desired, the same automatically locking when the thumbpiece is released. As before explained, the clamp 10 may be slid along the support 2, and the piece 11 may be turned as desired upon the clamp 10 and the lens adjusted to any part of the ground glass.
Having now'fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
a 1. Inadevice of the character described, the combination with the adjustable support of the same, of a clamp slidable upon said support, and a clamp pivotally connected to the rear of said sliding piece.
2. In a device of the character described, a ratchet-provided support, a pivot upon the ratchet end of the support, and a spring-pawl adapted to operate in connection with the same, so that the support maybe adjusted.
3. A lens-support, composed of a main support for the lens, said support carrying a ratchet-head, a pivot upon which the ratchethead is journaled, a pawl operating in connection with said head, and a thumb-piece to operate the pawl.
4. In a device of the character described, a support,-a U-shaped clamp embracing and adjustable on said support, U-shaped clamps to receive the lens, and a pivot connecting the clamps.
5. A lens-support, composed of a main support provided with a ratchet-head, a casing for the ratchet-head, a pivot upon which the ratchet-head is journaled, a spring-operated 5 pawl to act in conjunction with the ratchet, and a thumb-piece connected with the spring for operating the same.
In testimony whereof I aflix my signature in presence of two Witnesses.
HUGH T. DON N AN.
Witnesses: v
D. C. WVILHITE, F. L. HATFIELD.
US17096303A 1903-08-27 1903-08-27 Lens-support for ground glasses on cameras. Expired - Lifetime US774656A (en)

Priority Applications (1)

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US17096303A US774656A (en) 1903-08-27 1903-08-27 Lens-support for ground glasses on cameras.

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US17096303A US774656A (en) 1903-08-27 1903-08-27 Lens-support for ground glasses on cameras.

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US774656A true US774656A (en) 1904-11-08

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644383A (en) * 1950-08-19 1953-07-07 Meditz Ludwig Invertoscope for photographic cameras
US2669169A (en) * 1951-02-19 1954-02-16 Meditz Ludwig Invertoscope for photographic cameras
US3024696A (en) * 1957-01-24 1962-03-13 Sperry Rand Corp Projection system
US3469909A (en) * 1966-12-30 1969-09-30 Ushio Electric Inc Device for carrying out observations of an image formed on an image forming surface

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644383A (en) * 1950-08-19 1953-07-07 Meditz Ludwig Invertoscope for photographic cameras
US2669169A (en) * 1951-02-19 1954-02-16 Meditz Ludwig Invertoscope for photographic cameras
US3024696A (en) * 1957-01-24 1962-03-13 Sperry Rand Corp Projection system
US3469909A (en) * 1966-12-30 1969-09-30 Ushio Electric Inc Device for carrying out observations of an image formed on an image forming surface

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