US808644A - Adjusting mechanism for screw-threaded needle-point insertions of compasses. - Google Patents

Adjusting mechanism for screw-threaded needle-point insertions of compasses. Download PDF

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Publication number
US808644A
US808644A US25502705A US1905255027A US808644A US 808644 A US808644 A US 808644A US 25502705 A US25502705 A US 25502705A US 1905255027 A US1905255027 A US 1905255027A US 808644 A US808644 A US 808644A
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Prior art keywords
needle
screw
compasses
adjusting mechanism
foot
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Expired - Lifetime
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US25502705A
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Johann Eichmueller
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FIRM OF EUGENE DIETZGEN Co
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FIRM OF EUGENE DIETZGEN CO
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Priority to US25502705A priority Critical patent/US808644A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
    • B23Q1/54—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only
    • B23Q1/545—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only comprising spherical surfaces
    • B23Q1/5462—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only comprising spherical surfaces with one supplementary sliding pair
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/16—Compasses, i.e. with a pair of pivoted arms

Definitions

  • JOHANN EICHMIILLER OF NUREMBERG, GERMANY, ASSIGNOR TO THE FIRM OF EUGENE DIETZGEN (10., OF NEW YORK, N. Y.
  • This invention has for its object a fine-adjusting mechanism for screw-threaded needle-point insertions for compasses in which the nut mounted on the needle is made diskshaped and secured against axial displacement by being inserted in a recess corresponding in width to the thickness of the disk in the foot of the needlepoint, arranged at right angles to the needle-foot of the leg of the compasses.
  • Figure 1 is an elevation; Fig. 2, an elevation turned at right angles to the previous view, and Fig. 3 a vertical section further again turned at right angles to Fig. 2.
  • the needle-foot a of the leg I) of the compasses is provided with a smooth perforation d, adapted to receive the needle 0, which perforation is continued on the inside of the compass-leg b as a semicylindrical groove e.
  • a milled dlsk f is mounted in a recess 9, formed at ri ht an les to the axis of the needle, the widt of w 'ch recess corresponds to the thickness of the disk f, so that the latter cannot be axially displaced.
  • On one side of the needle-foot a a stirrup-shaped enlargement h, surrounding the recess g, is provided,
  • the insertion-needle c is also provided with a longitudinal groove 70, in which a small screw l, arranged on the needle-foot a, engages, and thereby prevents the needle revolving.
  • the needle which is prevented rotating is axially displaced in one direction or the other by the disk f being turned in one or other direction.
  • I declare that what I claim is- 1.
  • a compass having a needle-foot having a longitudinal bore therein, a screw-threaded needle adapted to fit in said bore, said foot having a lateral recess therein, a disk fitting in said recess and having a screw-threaded central opening through which the needle passes, and means for preventing the needle from rotating when the disk is turned, substantially as described.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Description

No. 808,644. PATENTED JAN. 2, 1906.
J. EIOHMULLER. ADJUSTING MECHANISM FOR SCREW THREADED NEEDLE POINT INSERTIONS OP COMPASSES.
APPLICATION FILED APR.11.1905.
21:91- I Ty Llijlfilllllllllllllllim lllllIlllllllllllllllllllll!!!.
UNITED STATES PATENT OFFICE.
JOHANN EICHMIILLER, OF NUREMBERG, GERMANY, ASSIGNOR TO THE FIRM OF EUGENE DIETZGEN (10., OF NEW YORK, N. Y.
Specification of Letters Patent.
Patented Jan. 2, 1906.
Application filed April 11, 1905. Serial No. 255,027.
To all whom, it may concern.-
Be it known that I, J OHANN EIoHMI'iLLER, manufacturer, a subject of the German Emperor, residing at Nuremberg, Bavaria, Germany, have invented new and useful Improvements in Adjusting Mechanisms for Screw-Threaded Needle-Point Insertions of Compasses, of which the following is a specification.
This invention has for its object a fine-adjusting mechanism for screw-threaded needle-point insertions for compasses in which the nut mounted on the needle is made diskshaped and secured against axial displacement by being inserted in a recess corresponding in width to the thickness of the disk in the foot of the needlepoint, arranged at right angles to the needle-foot of the leg of the compasses.
This improved fine-adjusting mechanism is shown in one form of construction in the accompanying drawings.
Figure 1 is an elevation; Fig. 2, an elevation turned at right angles to the previous view, and Fig. 3 a vertical section further again turned at right angles to Fig. 2.
The needle-foot a of the leg I) of the compasses is provided with a smooth perforation d, adapted to receive the needle 0, which perforation is continued on the inside of the compass-leg b as a semicylindrical groove e. A milled dlsk f is mounted in a recess 9, formed at ri ht an les to the axis of the needle, the widt of w 'ch recess corresponds to the thickness of the disk f, so that the latter cannot be axially displaced. On one side of the needle-foot a a stirrup-shaped enlargement h, surrounding the recess g, is provided,
in the yoke of which enlargement a pressurescrew 'i, adapted to be adjusted against the edge of the disk-shaped nut f is mounted. The insertion-needle c is also provided with a longitudinal groove 70, in which a small screw l, arranged on the needle-foot a, engages, and thereby prevents the needle revolving.
If the pressure-disk 'i be released, the needle which is prevented rotating is axially displaced in one direction or the other by the disk f being turned in one or other direction. In order to fix the needle in the desired position, it is only necessary to press the pressure-screw i against the edge of the disk f, which is thereby secured against rotation and in this manner prevents any unintentional displacement of the needle.
I declare that what I claim is- 1. In combination in a compass having a needle-foot having a longitudinal bore therein, a screw-threaded needle adapted to fit in said bore, said foot having a lateral recess therein, a disk fitting in said recess and having a screw-threaded central opening through which the needle passes, and means for preventing the needle from rotating when the disk is turned, substantially as described.
2. In combination in a compass having a needle-foot provided with a smooth longitudinal bore, a screw-threaded needle fitting in said bore, said needle having a longitudinal recess therein, a screw in said foot having its end engaging in said recess so as to prevent the needle from turning, said foot having a lateral recess and a disk fitting in said recess and having a central screw-threaded hole through which the needle passes.
3. In combination in a compass having a needle-foot provided with a smooth longitudinal bore, a screw-threaded needle fitting in said bore, means for preventing the needle from rotating, said foot having a lateral recess, a disk fitting in said recess and having a central screw-threaded hole through which said needle passes, a stirrup-shaped enlargement connected to the needle-foot and 1nclosing on one side the said recess and a pressure-screw mounted in said enlargement and having its end adapted to engage with the disk so as to prevent movement of the same.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
.IOHANN EIOHMIILLER.
US25502705A 1905-04-11 1905-04-11 Adjusting mechanism for screw-threaded needle-point insertions of compasses. Expired - Lifetime US808644A (en)

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US25502705A US808644A (en) 1905-04-11 1905-04-11 Adjusting mechanism for screw-threaded needle-point insertions of compasses.

Applications Claiming Priority (1)

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US25502705A US808644A (en) 1905-04-11 1905-04-11 Adjusting mechanism for screw-threaded needle-point insertions of compasses.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499754A (en) * 1946-08-16 1950-03-07 Clarence P Huls Compass tool
US2510805A (en) * 1945-05-31 1950-06-06 Dewey Edward Bradley Extensible tip for dividers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2510805A (en) * 1945-05-31 1950-06-06 Dewey Edward Bradley Extensible tip for dividers
US2499754A (en) * 1946-08-16 1950-03-07 Clarence P Huls Compass tool

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