US274105A - Dental spittoon - Google Patents

Description

` DENTAL sPTTool. No. 274,105.

Patented Mar. 20,1883.`

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DENTAL SPITTOON.

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DENTAL SPITTOON.

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y UNITED, STATES PATENT @Ei-TCEo y ELLIS B. BLISS, OF WASHINGTON, DISTRICT OFICOLUMBIA.

DENTAL SPITTOON.

SPECIFICATION forming' part `of Letters Patent No. 274,105, dated March 20, 1883;

` Application filed January 8, 18H83. (No model.)

To all whom it may concern:

Be it known that I, ELLIS B. BLISS, a citizen of the United States, residing at Washington, in the District of Columbia, have invented certain new and useful Improvements in Dental Spittoons; and I do hereby declare the following tombe a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the saine, reference being had to the accompanying drawings, and to letters or figures of 'reference marked thereon, which forni a part of'this specification.

This invention relates to that class of dental spittoons which have pipes for the supply and discharge of water, and are adapted to be adjusted in position to conform to the varying location ofthe patients head as the chair-back` is raised or lowered or the chair turned on its pivot in the usual manner. Sometimes these spittoons have been attached to the chairitself, in which case they are necessarily removed therewith whenever the chair is removed from its place, and have no independent support. Moreover, the turning of the chair will not vary the position of the spittoon with respect to the patients head, a separate motion being required to elfect this latter adjustment. In other cases these spittoons have been supported on their discharge-pipes inde-` pendently of the chair, said pipes being provided with two universal joints, one near the iioor and one near the spittoon. By means of the former the spittoon may be raised and lowered and turned in any direction, and by means of the upper joint the spittoon is made to take a horizontal position wherever thus placed. It is obvious, however, that this construction is very costly, and, moreover, requires at least two motions to adjust the spittoon ready for use. To avoid these objections, l make use of the construction hereinafter -set forth and claimed.

My inventonconsists, first, in a dental spittoon, in combination with'a bent snpportpivoted for vhorizontal axial adjustment and independent ofthe dentists chair; secondly, in a dental spittoon, in combination with a support consisting of 4a water-supply tube and a discharge-tube, arranged the one Within the other and independent of the dentists chair;

thirdly, in a dental spittocn, in" combination with a support consisting of a water-supply tube and a discharge-tube anda bearing in which they have axial motion, said tubes being bent substantially as and for the purpose hereinafter set forth; fonrthly, in a dental spittoon, in combination with a water-sapply tube,

a discharge-tube exterior thereto, a bushing turning with said tubes, a bearing in which saidbnshing turns, and connections respectively between said discharge pipe or tube and the drain-pipe and said water-supply tube or pipe andthe water-supply system of the building, substantially as hereinafter set forth; fthly, a dental spittoon and its ywater-supply pipe and discharge-pipe, in combination with a bearing in which they turn, and an exterior supply-pipe and drainpipe,`said bearing being adapted to allow the passage of water to and from the spittoon through said supply-pipe and discharge-pipe, substantially as hereinafter set forth; sixthly, a bearing having two annular grooves in its inner face and passages leading from said grooves to the exterior of 7 5 said bearing, in combination with tubes leading respectively to and from the spittoon and provided with a bushing and suitable openings communicating with said grooves, substantially as hereinafter set forth; seventhlyin a spittoou and supply andilischarge tubes which support it, a colloidal bushing forsaid tubes, said bushing being closed at the `bottom and provided with a screw-threaded stud, iu cornbination with a bearing adapted to receive said bushing and a nut which turns on said stud to tighten said bushing in its seat, substantially as hereinafterset forth; eighthly, in a dental spittoon provided with la tumblerholder which has an outlet from its bottom,for the purpose hereinafter set forth; ninthly, in a dental* spittoon provided with a tumblerholder which has a tube extending from its bottom and communicating with the interior l of the spittoon, substantially as and for Athe purpose hereinafter set forth and claimed; teuthly, in a dental spittoon provided with a tumbler-holderhaving a tubular support which acts as a drain or outlet-pipe for said tumblerholder, substantially as hereinafter set forth '10:

and claimed. 4 i

In the accompanying drawings, Figure 1 Q seamos represents a perspective view of a dentists chair tilted back in the usual position for operation, and one of rny improved dental spittoons arranged in proximity thereto and ready for use. Fig. 2 represents an enlarged vertical section through vthe spittoon proper and the upper ends ot' the pipes. Fig. 3 represents a vertical section through the outer or discharge pipe, its bearings and connections, thesupply-pipe being unsectioned except at itslower end, and the upper ends of both pipes not shown. Fig. 4 represents a plan view of the spittoon proper. Fig. 5 represents a vertical section through the devices for allowing supply and discharge of water above the door.

In the accompanying drawings the same C letters indicate the sinne parts.

A designates a dental-chair, supported in the usual way on legs a, and having the ordinary devices for raising and lowering, tilting and turningit. Any form ofchair may be used, as this forms no part of' my invention. It should be arranged so that the treadle a will be on the rightot' the spittoon-support, and the rear left. leg of the chair on the other side of said spittoon-support. This support consists of an outer pipe or tube, B, and au inner pipe or tube, C,`both extending vertically upward a short distance from the door, and then bending laterally in an upward curve, on the upper end of which is mounted a spittoon, D. The inner pipe, C, receives water at its lower end from a pipe, c, forming part ot' the water-supply system of the house, the connection being made by means ot' a tlexible tube, E, and suitable eouplings, as shown in Fig. 3, when the pipes B C are extended below the floor, the couplings of course protruding through the outer pipe, B, for the attachment ot' said flexible tube. The influx of water is controlled by a valve, F, the stem whereof rises through the tioor and isl provided with the usual handwheel, f, for convenience of operation. The upper end of pipe C is firmly attached to the bottom of spittoon I). It communicates ter! 'initially with the usual rose or sprayer, G,

whereby the'inside Aot' the spittoon is washed, and through a side opening with the small tubular fixture It, leading` to the elevated faucets H, which supply water at will to the cups or tumblers for rinsing the patients mouth. The bottom of the spittoon is provided with openings d, which allow the water supplied through pipes U to dow down into the discharge-pipe B, and thence through gooseneck stench-trap B to the waste-pipe leading to the sewer.

The pipe B is preferably o'l brass, plated with nickel or other metal sufficiently hard to bear polish and resist wear, and consists of two sections joined at the bend by a unionpiece, b', ot' the ordinary sort. The pipe C consists preferably for the most part ot' lead tubing joined to brass pieces at the top or bottom; but I do not wish to be understood as restricting myself to any particular material or number of' parts, or shape or method of atturns in a cylindrical bearing, J, fixed in the door, and is provided at its top with a tiange, t', which rests on the top ot' said hearing and prevents the pipe B from slipping down through the same. The eXible tubing E is of such length as tointerpose no obstacle to the turning of said tubes `B and C, and they acc0rd ingly have free pivotal motion on the aXis oi" the vertical lower parts of said tubes. The upper parts of said tubes, however, being bent laterally, will necessarily present the spittoon to the patient at a neareror more remote point or a dit'erent angle according to the degree of motion given. As there is no tilting of the tubularsupport,the spittoon inevitably retains at all times its horizontal position, requiring no additional adjustment. When the chair is turned upon its pivot it may be made to turn the spittoon (by contact with the latter or its support) until the relative positions ofthe patients head and the spittoon are accurately adjusted to secure his convenience. .Thus the spittoon is properly located in Fig. l, so long as the patients head is in the position indicated by the head-rest, since by slightly rising and turning he can easily rinse his mouth into it. By turning the chair to the left the spittoon will be struck or pressed against by the side of the back of' said chair, and the lient supporting-tube of said spittoon will be caused toturn upon its pivot. This will obviously cause the said spittoon to take a more forward position with respect to the patients head while he is in a recumbent attitude, and thus arrange itself to be conveniently used when the raising of the patients body into a more upright attitude has brought. his head tlrther forward. This cannot be done by turning the chair when the spittoon-support is attached thereto, since they have then an aXis in common; nor can it be done when the tilting form of spittoon-supportis used. In both these latter cases at least one additional operation or motion is required, which my improvement makes unnecessary. v

In very many cases adentists office is above a vestibule or some hall or apartment, into which the pipes forsupplying and discharging water cannot well be introduced. of the floor and ceiling is also undesirable. To avoid these objections I often malte use ot' the devicesshownln Fig.5. In thlsijgure'the bearing Jis shown entirely above the door, to which it is bolted by a bottom flange, j. 0n the inner face of this bearing` .are formed two annular groovesLJ and J2, one being near the top and the other near the bottom thereof` for a purl pose to be hereinafter explained. Said inner face is conoi'dal, tapering downward, and the outer face of bushing I is'made to tit it. This bushingis closed at the bottom below the lower ICO IIO

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The cutting end of the outer pipe, B. A series of holes, 12,

L, extending from upper groove, J, to the' outside of said bearing, and also with a similar passage, L, extending from the lower groove, J2, to the outside of said bearin g. The pipe c, forming part ofthe water-supply systein of the building, is screwed into the .Iirst'named passage, the inux ot' Water being governed, as before, by valve F. The drain-pipe M is connected similarly-to said bearing by screwing into the screwtapped outer portion of passage L. Both these pipes are above the floor and may be concealed by woodwork orin any other manner, according to convenience. The tubes B U and bushing I turn freely in bearing J, and whatever their position of axial adjustment the grooves Jl J2 insure a flow ot' water vfrom pipe c to pipe C, and from dischargepipe B to the drain-pipe M.

A0n the lower end of bushing I a screwt `threaded downwardly-extending stud, N, is

5o justment and independent of the dentists formed.

This is encircled by a washer, o, and receives a nut, O, whereby said bushing may be tightened at will in its seat within said bearing.

. 0f course the foregoing devices may be modified in many ways, and equivalents may be substituted without departing from the spirit of my invention.

Z designates a tumbler-holder -formed with or attached tothe spitton, and provided with a tubular support. fz, which .conducts the water that drips from the tumblers down into the interior of the spittoon, whence it passes through pipe B to the drain. tiexible and independent of the'support; but I prefer the construction shown.

Having thus tully described my invention, what Iclaim as new, and desire to secure by Letters Patent, is t l. A dental spittoon, in combination with a bent support, pivoted for horizontal axial ad- 2. A dental spittoon, in combination with a support consisting of a water-supply tube and a discharge-tube arranged'the one within the other and independent of the dentists chair.

'Iube z may be` 3. A dental spittoon, in combination with a support consisting of a water-supply tube and a discharge-tube and a bearing in which they have axial motion, said tubes being bent substan tially as and for the purposes set forth.

4. A dental spittoon, in combination with a thereto,'a bushing turning with said tubes, a bearing in which said bushing turns, and connections respectively between said discharge pipe or tube and the drain-pipe, and said watersupply tube or pipe and the water-supply system ot' the building, for the purposes set forth. 5. A dental spittoon and its Water-supply pipe and discharge-pipe, incombination with a bearing in which they turn, and an exterior supply-pipe and drain-pipe, said bearing being adapted to allow the passage of water to and from the spittoon through said supply-pipe and discharge-pipe, substantially as set forth. 6. The bearing J, having annular grooves J and J2 in its inner face, and passages leading from said grooves to the exterior of' said bearing, in combination with the tubes B (l, leading to and from the spittoon, and provided with a bushing and suitable openings communicatin g with said grooves, substantially as set forth. v

7. In combination with the spittoon andthe supply and discharge tubes which support it, the conoidal bushing-I, closed at the bottom and provided with a screw-threaded stud, the bearin g adapted to receive said bushing, and the nut which turns on said stud to tighten said bushing in its seat, substantially as set forth.

8. A dental spittoon provided with a tumbler-holder which has an outlet from its bottom, for the purpose vset forth.

9. A dental spittoon provided with a tum bler-holder which has a tube extending from its bottom and communicating with the interior of the spittoon, for the purpose set forth.

l0. A dental spittoon provided with a tumbler-holder, Z, having a support, z, which is tubular, in order to adapt it to act as a'drain or outlet-pipe for said holder, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ELLIS B. BLISS.

Witnesses:

J oHN P. LAWRENCE, A. S.TAYLOR.

water-supply tube, a discharge-tube exterior t IOO

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