US173148A - Improvement in bracket-standstor dental instruments - Google Patents

Improvement in bracket-standstor dental instruments Download PDF

Info

Publication number
US173148A
US173148A US173148DA US173148A US 173148 A US173148 A US 173148A US 173148D A US173148D A US 173148DA US 173148 A US173148 A US 173148A
Authority
US
United States
Prior art keywords
bracket
improvement
standstor
dental instruments
rod
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
Application number
Publication date
Application granted granted Critical
Publication of US173148A publication Critical patent/US173148A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B23/00—Bed-tables; Trays; Reading-racks; Book-rests, i.e. items used in combination with something else
    • A47B23/06—Bed-tables; Trays; Reading-racks; Book-rests, i.e. items used in combination with something else characterised by association with auxiliary devices, e.g. line indicators, leaf turners, lampholders, book or page holders

Definitions

  • Figure 1 represents a bottomplan of so much of my improved apparatus as is necessaryto illustrate the subject-matter herein claimed;
  • Fig. 2 a side view thereof, with portions of theclamping devices shown in-se tion.
  • the supporting-arm A secured to the chair or other suitable support, is provided with bearings B B, in which a rod or bar, 0, turns and moves freely endwise.
  • a nut or frictionclamp, D having its lower side tapering, or conical, takes-into a corresponding recess in .thelower bearing, and fits loosely upon the rod on which it is clamped by a set-screw, E.
  • the object in making the friction-clamp conical is to create friction enough to prevent the rod from turning, unless positively moved.
  • the clamp-nut it will beobserved, is confined by the rod 0 between the bearings B B, and thus prevented from becoming displaced.
  • the rod can be adjusted up or down in any desired position, and fastened by the clamp screw and nut, which prevents its descent below a given point, but still allows it. to turn in its bearings when positively moved.
  • An arm, F projects laterally from the rod 0, and carries a clamp-screw, I, provided with a head'whioh fits in the grooves of a longitudtable can swing freely upon the pivot O, and 1 can be adjusted by moving the table laterally upon the' arm F, and can also be turned or swung around the clampscrew or pivot I, thus 1 giving a wide range of adjustment to the apparatus.

Landscapes

  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Description

'0; C. WHITE.
BRACKET STAND FOR DENTAL INSTRUMENTS;
No-.173,148. Patented Feb. s, 187.6.
WITNESSES w IJV'VEJVTOR 0m 0' Wife,
' I By kid flttorney IINITED ST S 01 1s 0. WHITE, on HOPKINTON, M ssAoHUsnrrs, AssreNoe To SAMUEL 's. WHITE, OF PHILADELPHIA, PENNSYLVANIA.
. IMPROVEMENT lNiBRAcKE -s ANosToR DENTAL INSTRUMENTS. I
The subjectrmatter claimed will hereinafterspecifically be designated. I
In the accompanying drawings, Figure 1 represents a bottomplan of so much of my improved apparatus as is necessaryto illustrate the subject-matter herein claimed; Fig. 2, a side view thereof, with portions of theclamping devices shown in-se tion.
The supporting-arm A, secured to the chair or other suitable support, is provided with bearings B B, in which a rod or bar, 0, turns and moves freely endwise. A nut or frictionclamp, D, having its lower side tapering, or conical, takes-into a corresponding recess in .thelower bearing, and fits loosely upon the rod on which it is clamped by a set-screw, E. The object in making the friction-clamp conical is to create friction enough to prevent the rod from turning, unless positively moved. The clamp-nut, it will beobserved, is confined by the rod 0 between the bearings B B, and thus prevented from becoming displaced.
It is obvious from the above description that the rod can be adjusted up or down in any desired position, and fastened by the clamp screw and nut, which prevents its descent below a given point, but still allows it. to turn in its bearings when positively moved.
Specification formingpart of LettersPatent No. 173.148, dated February 8, 1876; application filed January 5, 1876. I
An arm, F, projects laterally from the rod 0, and carries a clamp-screw, I, provided with a head'whioh fits in the grooves of a longitudtable can swing freely upon the pivot O, and 1 can be adjusted by moving the table laterally upon the' arm F, and can also be turned or swung around the clampscrew or pivot I, thus 1 giving a wide range of adjustment to the apparatus.
I claim as my invention l. The combination of the bracket-frame, its
bearings, the rod movable freely end-wise and structed and operating substantially as hereinbefore set forth.
3. The instrument-stand hereinbefore described, consisting of the combination of the WM. D. BALDWIN, ELI T. STARR.
US173148D Improvement in bracket-standstor dental instruments Expired - Lifetime US173148A (en)

Publications (1)

Publication Number Publication Date
US173148A true US173148A (en) 1876-02-08

Family

ID=2242555

Family Applications (1)

Application Number Title Priority Date Filing Date
US173148D Expired - Lifetime US173148A (en) Improvement in bracket-standstor dental instruments

Country Status (1)

Country Link
US (1) US173148A (en)

Similar Documents

Publication Publication Date Title
US646835A (en) Book rest or table.
US598895A (en) Adjustable table
US169383A (en) Improvement in ball-and-socket joints
US550443A (en) Table-attachment for articles of furniture
US505602A (en) Self-waiting table
US809310A (en) Copy-holder.
US812660A (en) Adjustable mirror-support.
US1121713A (en) Desk or table.
US201876A (en) Improvement in dental brackets
US498945A (en) Island
US178747A (en) Improvement in book-supports or table attachments for bedsteads
US470207A (en) Book-support
US615130A (en) Drawing-table
US821572A (en) Table.
US111782A (en) Improvement in sewing-machine seats
US230446A (en) Music-rack
US820511A (en) Horn-support.
US415466A (en) Henry w
US510090A (en) Garrett wallace poole
US811278A (en) Adjustable clutch-controlled standard.
US508557A (en) Adjustable support for school furniture
US812691A (en) Rotary hook-support for garments and the like.
US793233A (en) Lamp-holding bracket for dental chairs.
US118991A (en) Improvement in tables and stands
US360788A (en) Table-leaf support