US93662A - Improved bead-rest for dentists and barbers chairs - Google Patents
Improved bead-rest for dentists and barbers chairs Download PDFInfo
- Publication number
- US93662A US93662A US93662DA US93662A US 93662 A US93662 A US 93662A US 93662D A US93662D A US 93662DA US 93662 A US93662 A US 93662A
- Authority
- US
- United States
- Prior art keywords
- rest
- head
- dentists
- screw
- improved bead
- 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
- 240000009132 Sagittaria sagittifolia Species 0.000 description 4
- 230000036633 rest Effects 0.000 description 4
- 240000002317 Camassia leichtlinii Species 0.000 description 2
- 235000000459 Camassia leichtlinii Nutrition 0.000 description 2
- 240000008790 Musa x paradisiaca Species 0.000 description 2
- 235000021015 bananas Nutrition 0.000 description 2
- 230000000994 depressed Effects 0.000 description 2
- 210000001699 lower leg Anatomy 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/10—Parts, details or accessories
- A61G15/12—Rests specially adapted therefor, e.g. for the head or feet
- A61G15/125—Head-rests
Definitions
- Figure 2 a top view of the bearing of the standard.
- Figure 3 a bottom 'view of the head-rest, detached.
- My invention consists .in the arrangement of the parts for producing the necessary horizontal and vertical adjustment ot' the head-rest, as hereinafterqdescribed.
- a C On the under side of the head-rest' is secured a C, having three slots, a a a, two running crosswise and the other longitudinally, and all connecting, as shown.
- At one end ofone slot is made an enlarged-opening, l1, to allow the head c of the clamping-screw D to pass. .y j
- the bearing' B has also a longitudinal slot, f, through which screw I) passes; and in this slot rests a square cross-arm, g, -of ythe screw, which prevents it from turning as the clamping-nut is tuiined.
- the employment oi the slots a a a allows any desired degree or kind of horizontal adjustment bysimply loosening the clamping-nut.
- the head-rest can be adjusted clear to one side, or
- The'cross-arm prevents the turning of the screw d when the nut is turned, so that the adjustment of the HOn-o-n-I f with the use of 4head-rest above may be .accomplished both hands, if desired.
- the cross-arm lrruowlse interferesv with the sliding ofthe screw B in the slots a a a.
- the packing-strips not onlyvprevent noise in the adjustment of the head-rest, but they specially serve ,to retain the head-rest from slipping when once adjusted, and with but a slight pressure of the clamp,- ing-nut.
- a fixed turning-screw, G is having a crank-head, k, outside, by which it is turned. On this is situated a loose nut, l, having pivoted thereto a forked connecting-arm, m, jointed at the opposite end of the upperieaf of the head-rest.
- the device to interfere withthe a curved ratchetbar has been generally :used to produce the vertical adjustment-projecting down through the bed andoperated from beneath.
- Such ya device cbuld not be used in my head-rest, as it would interfere with the lower adjustment, and, in fact, prevent its use altogether.
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Description
f metallic plate,
"tutii gisten -gatrnil (dimite- A -I-/etters Patent No; 93,662, datedvAugast 17, 1869.
IMPnovnn HEAD-REST ron DnN'rIs'rs' AND Bananas' camas.
The Schedule referred in these Letters Patent and making part et' the same.
'To all whom it may concern:
Be it known that I, ROBERT W. ARCHER, ofthe city of Rochester, in the4 county of Monroe, and State of New York, have invented a certain new anduseful Improvement in Head-Rests for. Dental and Barbers Ghairs; and I do hereby declare that the following is a full aud 'exact description thereof, reference being had to the accompanying drawings, making part of thisl specification, in whichv Figure'l is a sectional view of my improved headrest as applied toa dental chair.
Figure 2, a top view of the bearing of the standard.
Figure 3, a bottom 'view of the head-rest, detached.
Figure 4, a perspectivevvie'w of the clamping-screw, inverted. d
Like letters of reference indicatecorresponding parts.
in all the figures.
My invention consists .in the arrangement of the parts for producing the necessary horizontal and vertical adjustment ot' the head-rest, as hereinafterqdescribed.
In the drawings- A indicates the head-rest proper, and
B, the standard-bearing on which it rests l the said bearing sliding up and down in the batik of the chair,
as shown.
, On the under side of the head-rest' is secured a C, having three slots, a a a, two running crosswise and the other longitudinally, and all connecting, as shown. v
At one end ofone slot is made an enlarged-opening, l1, to allow the head c of the clamping-screw D to pass. .y j
The head of this screw being of larger diameter than the slots, it holds on top when clamped down by the nut E, which screws on shank d' beneath.
The bearing' B has also a longitudinal slot, f, through which screw I) passes; and in this slot rests a square cross-arm, g, -of ythe screw, which prevents it from turning as the clamping-nut is tuiined.
- 0n top of thelbearing'B are placed two rubber or equivaient strips, 'i i.
The employment oi the slots a a a, allows any desired degree or kind of horizontal adjustment bysimply loosening the clamping-nut. g The head-rest can be adjusted clear to one side, or
to any angle desired, and tightened again by turning,
the nut.
A special advantage is secured by the employment I of the cross-arm g and the packing-'strips i. fi.
The'cross-arm prevents the turning of the screw d when the nut is turned, so that the adjustment of the HOn-o-n-I f with the use of 4head-rest above may be .accomplished both hands, if desired.'
The cross-arm lrruowlse interferesv with the sliding ofthe screw B in the slots a a a.
f The packing-strips not onlyvprevent noise in the adjustment of the head-rest, but they specially serve ,to retain the head-rest from slipping when once adjusted, and with but a slight pressure of the clamp,- ing-nut.
This is of much importance, as thereby the headrest is firmly held, and no undue strain comes upon the screw. v A.
l The vertical adjustment of the head-rest is produced as follows:
A fixed turning-screw, G, is having a crank-head, k, outside, by which it is turned. On this is situated a loose nut, l, having pivoted thereto a forked connecting-arm, m, jointed at the opposite end of the upperieaf of the head-rest.
As the vscrew is turned in one direction or the other,the top of the'headfrest will be correspondingly raised or depressed as'it moves around the hinge. l This arrangement for producing the vertical adjustment of the head-rest has special relation to that before described, for producing the horizontal adjustl -ment, since there` is no projection of either part through the`bed of other.
Here'tofore,
the device to interfere withthe a curved ratchetbar has been generally :used to produce the vertical adjustment-projecting down through the bed andoperated from beneath.
Such ya device cbuld not be used in my head-rest, as it would interfere with the lower adjustment, and, in fact, prevent its use altogether.
What I claim as my invention, and desire to secure by Letters Patent, is-
.1. 'The arrangement, with the bearing B and slotted plate O, as described, of the packing-strips 't 'i and screw D, provided with the cross-arm g and head c, f/
the .whole operating in-the manner and for the purpose speeiiied.
2. In combination with the above, the arrangement of the screw G, nut l, and connecting-arm m, for pro-` ducing the lvertical adjustment, substantially as de-4 scribed.
' In witness whereof, I have hereunto signed my name, in the Vpresence of two, subscribing witnesses.
. i ROBERT W. ARCHER.
Witnesses R. F. Oscoop, Gao. W. Mrn'r'r.
located in the bed, v
Publications (1)
Publication Number | Publication Date |
---|---|
US93662A true US93662A (en) | 1869-08-17 |
Family
ID=2163139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US93662D Expired - Lifetime US93662A (en) | Improved bead-rest for dentists and barbers chairs |
Country Status (1)
Country | Link |
---|---|
US (1) | US93662A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2434007A (en) * | 1946-05-08 | 1948-01-06 | Nora O Dea | Headrest |
US4353595A (en) * | 1979-12-27 | 1982-10-12 | Kabushiki Kaisha Morita Seisakusho | Headrest control device for a treatment chair |
US4778218A (en) * | 1986-12-12 | 1988-10-18 | Prince Corporation | Adjustable headrest |
-
0
- US US93662D patent/US93662A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2434007A (en) * | 1946-05-08 | 1948-01-06 | Nora O Dea | Headrest |
US4353595A (en) * | 1979-12-27 | 1982-10-12 | Kabushiki Kaisha Morita Seisakusho | Headrest control device for a treatment chair |
US4778218A (en) * | 1986-12-12 | 1988-10-18 | Prince Corporation | Adjustable headrest |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5066069A (en) | Chair back and seat adjustment mechanism | |
US336220A (en) | John n | |
US550443A (en) | Table-attachment for articles of furniture | |
US93662A (en) | Improved bead-rest for dentists and barbers chairs | |
US235106A (en) | Umbrella-support | |
US1332201A (en) | Revolving seat of piano-stocls | |
US408823A (en) | Sylvania | |
US619272A (en) | Vania | |
US439159A (en) | Table | |
US490090A (en) | Head-rest | |
US363339A (en) | Chusetts | |
US642404A (en) | Head-rest. | |
US513419A (en) | Max rittberger | |
US560092A (en) | Support for blowpipes | |
US79994A (en) | William | |
US787486A (en) | Support for umbrellas. | |
US53038A (en) | Chair for photographic purposes | |
US365181A (en) | Trammel | |
US178747A (en) | Improvement in book-supports or table attachments for bedsteads | |
US42084A (en) | Improvement in head-rests for railway-carriage seats | |
US79534A (en) | Combined baby-jumper and cradle | |
US59457A (en) | Improved adjustable back for stools | |
US1117062A (en) | Adjustable serving-table and book-rest. | |
US82125A (en) | Thomas s | |
US311254A (en) | Adjustable chair for tracks |