US241949A - finnet - Google Patents

Description

(No Model.) 2 sheets-sheet 1.

J. R. PINNB'Y. Dental Spittoo'n.

No'. 241,949'. Patented May 24, 188|.

MVLESSEL lrlwpuph @MLK/14,

(No Model.)

' 2 Sheets-Sheet 2.- J. R. FINNEY. Dental Spittoon..

No. 241,949.` Patented May 24,1881.

N. PEIERS, Phokhogriw, Wm D. C.

- UNITED STATES PATENT OFFICEo JOSEPH R. FINNEY, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO LEE S. SMITH, OF SAME PLACE.

I DENTAL SPITTOON.

SPECIFICATION forming part of Letters Patent No. 241,949, dated May 24, 1881.

Application filed April 16,1880. (No model.)

To all whom it may concern:

Beit known that I, JOSEPH R. FINNEY, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Dental Spittoons; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had the accompanying drawings, in which.-

'Figure l is a perspective view of a dental chair provid ed with my improved spittoon. Fig. 2 is a sectional view of the spitt-oon, showing a portion of the discharge and supply pipes. Fig. 3 is a detached plan view of the supporting-arm and Fig. 4 is a detached sectional view, showing the manner in which the supply and discharge pipes are conducted through the lioor or wall of the room.

Like letters of reference indicate like parts in each.

My invention relates to spittoons for dental purposes; and it consists, first, in flexible supply and discharge pipes so arranged as to enable the spittoon to be moved at pleasure; second, in forming a trap in connection with the flexible discharge-pipe to prevent gas and any disagreeable odor from passingup from the sewer; third, in couductin g fresh water to the spittoon through a flexible supply-pipe; fourth, in the manner of passing the discharge and supply pipes through the floor or wall of the room; 'and fifth, in the arrangement and form of the bracket or arm for attaching the spittoon to the arm of the dental chair, as willA hereinafter more fully appear.

I will now describe my invention so that others skilledin the art maymanufacture the same.

In the drawings, a represents the bowl of the spittoon, which maybe constructed of the usual pattern, having a tube, b, around the rim of the sam e, in which tube are orifices c, through which the water drips into and down the sides of the basin, andthence passes out through the wasteppe d, which extends downward from the bottom ofthe basin. -At the end of the pipe d is a horizontal pipe, e, which connects with and extends at a right angle from the pipe d. In the lower side of the pipe c, at a point near the end of thepipe d, is a round opening or orifice, j', which is surrounded by a collar, g, on the outside of the pipe, on which collar g is cut a screw-thread.

Screwed onto the collar g is a globular receptacle, h, the purpose of which is to catch and retain the gold fillings which pass from the basin a.

Extending from the pipe e upward, parallel with the discharge-pipe d, is a pipe, c', which reaches to about the level of the bottom ofthe basin a. The top end of this pipe t' is open,

Vand may be iiared or cup-shaped, as shown in Fig. 2, so as to catch any water that may drip from the water-supply pipe j, which extends from the tube or pipe' b, which surrounds the basin, down through the waste-pipe i into and through the outer end of the waste-pipe e, so as to project la few inches beyond the end ot' the waste-pipe e. In the pipe j, at a point between the tube b and the upper end of the pipe z', is a cock, k, to regulate the ow of water to the basin.

k' is a bracket or arm provided with a ring, k2, which surrounds the pipe d, and a ring, k3, which surrounds the pipe t', just below the level of the basiitfand thence the arm or bracket extends and is fastened to a suitable stand or to the arm of the dental chair, as shown in Fig. l. The ring k2 is formed in two sections, which are hinged together and fastened, by a screw, 7c, around the pipe d, so that the spittoon may be easily raised or lowered. rI he end of the arm 7c passes loosely through a socket,

765, in the arm of the chair, so that when the chairis tilted the spittoon will remain in a level or horizontal position. These parts of the spittoon and pipes already described may be constructed of any suitable material, metal, however, being preferred. v

Attached to the end of the waste-pipe d is a flexible tube, l, which passes thence to a metal pipe, m, which opens from the wall or floor and extends then ce to the discharge out of the building. The end of the pipe m, which extends through the wall or f loor of the room, is threaded, and over this thread is screwed a ring or plate, n, which ring or plate is fastened to the oor or wall, so as to leave a portion of the end of the pipe m projecting sufficiently to allow of the end of the exible pipe I, which is proa vided with a suitable threaded metallic ring or coupling, to be attached to the same.

Passing inside ofthe flexible tube l is a smaller exible tube, o, one end of which is attached or coupled to the end of' the pipejand the othe1` end to a metallic pipe,p, which passes inside of the pipe m to a point below thelevel of the Hoor or outside ofthe wall, and thence through the side of the discharge-pipe to the freshwater-supply pipe. The purpose ot the pipes o and p are to supply the water to the basin.

In order to prevent the gas and odor from the sewer passing into the room a. portion of the flexible pipe m should be kept bent in a U shape, as shown in Fig. 1, or U or V shaped metallic pipes may be attached to the end of the pipes h and j, the flexible pipes m and o then being attached to the end ot' the trap so formed. The iiexible pipes in and o should be long enough to allow of the spittoon being moved to any desired position.

The spittoon may, it' desired, be attached to the dental chair, as shown in Fig. 1, or it may be attached to a suitable stand, which maybe placed in any desired position.

The advantages of my invention are that the spittoon as arranged is in a convenient and compact form, it is adjustable in any desired position, and at the same time discharges the waste into the pipe which leads to the sewer without permitting the gas or odor to escape into the room.

I am aware that spittoons having a iiexible waste-pipe have been used before, and I do not broadly claim the same; but

What I do claim, and desire to secure by Letters Patent, is

1. In combination with a spittoon, a tieXiblc discharge or waste pipe anda trap for preventing the escape of gas from the sewer, substantially as described.

2. In combination with aspittoomatlexible supply-pipe for furnishing the basin with water, substantially as described.

3. In combination with a spit-toon, a flexible discharge or waste pipe and a flexible supply pipe arranged inside ofthe waste-pipe, substantially as and for the purpose specified.

4. The combination ot' the tube m and its branch pipe with the central water-supply pipe and a collar for securing it in place, substantially as described.

5. In combination with a spittoon, a bracket for supporting the same, the arm ofsaid bracket beingjournaled in the arm of the dental chair, substantially as and for the purpose described.

In testimony whereof] have hereunto set my hand.

JOSEPH R. FINNEY.

Witnesses:

J. K. BAKEWELL, L. C. FITLER.

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