US25702A - Nathan - Google Patents

Nathan Download PDF

Info

Publication number
US25702A
US25702A US25702DA US25702A US 25702 A US25702 A US 25702A US 25702D A US25702D A US 25702DA US 25702 A US25702 A US 25702A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
rest
arm
chair
elbow
body
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
Grant date

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles
    • B60N2/24Seats specially adapted for vehicles for particular purposes or particular vehicles
    • B60N2/26Seats specially adapted for vehicles for particular purposes or particular vehicles for children
    • B60N2/28Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2839Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle having a front guard or barrier

Description

UNITED STATES PATENT OFFICE.

'NATHAN C. LEWIS, JR., OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND ED\VIN BRUCE, OF SAME PLACE.

CONSTRUCTION OF IDIEIN'IISTSV CHAIRS.

Specification of Letters Patent No. 25,702, dated October 4, 1859.

To all 'whom it may concern:

Be it known that I, NATHAN O. Lewis, J r., of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improved Operating-Chair for the use of Dentists; and I do hereby declare that the saine is fully described and represented in the following specification and the accompanying drawings, of which- Figure l, is a top view, Fig. 2, a side elevation; Fig. 3, a front elevation, and Fig. 4t, a transverse section of such chair.

The process of filling teeth or performing other dental operations is often attended with much fatigue or injury to the operator in consequence of the constrained positions he is generally obliged to assume and maintain from time to time without any means of supporting either the body or his operating arm. My invention therefore, is intended to provide in connection with a chair for the reception of the patient a means not only of sustaining the body but the elbow of the operator.

In the drawings, A, represents an arm chair of the kind usually employed by den tists, one of the arms L, c', of the said chair is to be provided with a socket, a, extending down through it and for thereception of a swivel, B, to which a cushioned bar or arm rest, C, is hinged so as to be capable of being turned upward and downward. The said arm rest (or elbow rest as it may be termed) when in use extends toward and is supported upon the opposite arm c', of the chair and is furcated or provided with a re cess, l), for the reception of an arm, c, so applied to the said elbow rest as to be capable of being turned horizontally on a pivot, cl, and arranged at either a right angle or an acute angle with reference to the front side of the said elbow or arm rest. This arm, c, has an adjustable cushioned body rest, e,

hinged to its outer end, the same being provided with a toothed sector, f, and a spring latch, g, by which its angular position may be adjusted relatively to the upper surface of the arm as circumstances may require. Fig. 5, is a top view of the said arm, o, and the spring latch applied thereto.

After a patient has been seated in the chair, the body rest may be adjusted at such an angle and in such a position horizontally as may be most convenient for the operator' to support his body while leaning it against the said body rest. Furthermore, the elbow rest may be moved more or less horizontally so as to be arranged in a convenient position for the operator to support the elbow of his operating arm while he may be engaged in the performance of a dental operation. By means of such appliances the patient also will be protected from inconvenient pressure of the dentist, which he is oftentimes oblfiged to produce in order to support himsel Having thus described my invention what I claim therein and desire to secure by Let ters Patent is as follows:

l. I claim as my invention or improvement the combination of the adjustable body rest with the chair.

2. I also claim the combination of the auxiliary or elbow rest and the body rest applied to a chair.

8. I also claim the mode of applying the body rest to the elbow rest, that is, by means of an adjustable arm, c, applied and operating with respect to the elbow rest as set forth.

In testimony whereof, I have hereunto set my signature.

NATHAN C. LEIVIS, JR. `Witnesses:

It. H. EDDY, F. I). HALE, Jr.

US25702A Nathan Expired - Lifetime US25702A (en)

Publications (1)

Publication Number Publication Date
US25702A true US25702A (en) 1859-10-04

Family

ID=2094758

Family Applications (1)

Application Number Title Priority Date Filing Date
US25702A Expired - Lifetime US25702A (en) Nathan

Country Status (1)

Country Link
US (1) US25702A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726093A (en) * 1971-11-15 1973-04-10 Parker Hannifin Corp Pump control system
US4866862A (en) * 1988-11-03 1989-09-19 Vu Thuan D Auxiliary road wiper blade
US20060047789A1 (en) * 2004-09-01 2006-03-02 Microsoft Corporation Rule-based filtering and alerting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726093A (en) * 1971-11-15 1973-04-10 Parker Hannifin Corp Pump control system
US4866862A (en) * 1988-11-03 1989-09-19 Vu Thuan D Auxiliary road wiper blade
US20060047789A1 (en) * 2004-09-01 2006-03-02 Microsoft Corporation Rule-based filtering and alerting

Similar Documents

Publication Publication Date Title
US3477761A (en) Dental chair headrest
US6382725B1 (en) Examination chair with lifting and tilting mechanism
US5267778A (en) Position control for a dental chair
US257050A (en) La mp-bracket
US1795630A (en) Screw jack
US1108692A (en) Dining-table attachment.
US542060A (en) le nt-z
US2801142A (en) Limb support for operating tables
US3650033A (en) Dental treatment units
US933471A (en) Head-rest.
US1007590A (en) Dental cabinet attachment.
US366525A (en) Fekro
US2598985A (en) Adjustable leg rest for wheel chairs
US153943A (en) Improvement in brackets for dentists chairs
US2568988A (en) Dentist's chair
US3463145A (en) Electrically activated therapeutic chair
US1603722A (en) Door-latch-opening device
US423698A (en) Henry davidson plimsoll
US344726A (en) Geobge e
US20110068613A1 (en) Chair
US169382A (en) Improvement in adjustable brackets
US611327A (en) Island
US461928A (en) Adjustable chair
US439088A (en) Chair
US135435A (en) Improvement in dentists stools