US1858794A - Device for the mechanical obtainment of alpha changeable paper or similar covering for the seats of water-closet basins - Google Patents

Description

May 17, 1932. VALLECCH] 1,858,794

DEVICE FOR THE MECHANICAL OBTAINMENT OF A CHANGEABLE PAPER OR SIMILAR COVERING FOR THE SEATS OF WATER CLOSET BASINS Filed May 7, 1931 3 Sheets-Sheet 1 E rLc aHecchL l Em'oR,

May 17, 1932. E. VALLECCHI 1,353,794

DEVICE FOR THE MECHANICAL OBTAINMENT OF A CHANGEABLE PAPER OR SIMILAR COVERING FOR THE SEATS OF WATER CLOSET BASINS Filed May '7, 1951 3' Sheets-Sheet 2 Enrico Va.) lecchfl,

NVENTOR;

May 17, 1932- E VALLECCHI 1,853,794

DEVICE FOR THE MECHANICAL OBTAINMENT OF' A CHANGEABLE PAPER OR SIMILAR COVERING FOR THE SEATS OF WATER CLOSET BASINS Filed May 7, 1931 3 Sheets-Sheet 3 "Enrico Vallccchk mvENTORs By Mg Q; hit-m3.

composed of loose sheets of Patented May 17, 1932 UNITED STATES PATENT OFFICE;

ENRICO VALLECCI-II, OF FLORENCE, ITALY DEVICE FOR THE MECHANICAL OBTAINMENT' OF A. CHANGEABLE PAPER OR SIMILAR COVERING FOR THE SEATS 0F WATER-CLOSET BASIN$ Application filed May 7,1931, Serial No.

The invention concerns a device to be applied in combination with the raisable fiat open lid or seatthat is, with the stoolof fixed water-closet basins, with a view to constantly having in virtue of such a device applied to said openseat, lid, or stool, a covering of paper or similar material, that may be changed at will.

A covering for the stools-usually made of wood, rubber or the like-is a general de-' sideratum for purposes of hygiene and cleanliness, but has failed to be generally adopted owing to absolute lack of practicability, being paper, to be applied by hand. Y

According to the invention there is pro vided, close to theseat, aroll or'the like,

formed of a strip of paper or of any other suitable material, presenting a consecutive series of zones without any solution of continuity; such zonesbeing suitably shaped and provided with an ample central aperture, said roll being in combination witha device in virtue whereof the roll is unwound from time to time, as controlled, in such a manner as to cause, each time it is actuated one of the zones of which it is composed, i. e. a change of paper with its aperture, to be presented,

.. in register with the common aperture of the stool and consequently corresponding with the mouth of the basin or pan itself. Thus the person using the stool-does not sit directly upon the latter, but upon the seat provided a with a clean paper covering or the like which may also have been previously sterilizedthat unwinds from time to time off the roll; while the paper, i. e. the covering having just been made use of by whoever had i resorted to the water-closet, proceeds to wind round a roller from which the soiled paper on the roller being filledis removed at a.

convenient moment. The device is such that I motion in order to the obtainment of the ings which show boththe case of hand-actu-- turn, spreads over the seat and 535,614, and in ma November 27, 1930;

ated apparatus and that of apparatus driven by a smallelectric motor.

In said drawings: Fig. 1 shows in perspective the ensemble of the device applied to a basin with the Fig. 5 shows a plan view of the papercarrying roller, fitted to the actuating device;

Fig. 6 is a section on line-C-D of Fig. 3;

- Fig. 7 is a detail of the fitting of the accompanying roller;

Fig. 8 shows the diagram for electric ink stead of mechanical actuation;

Fig. 8; I

Fig. 10 is a rearward view of Fig. 9; Fig. 11 is a vertical section of the front paper-winding roller, and i "Fig. 12 shows in a front and side view a detail of the wheel for the contacts.

According to the example delineated. in Figs. 1-7 inclusively, the invention consists in providing above the basin-lid or seat a roll of paper, which upon being caused to proceeds to wind round a front roller.

This roll of paper -a'is enclosed within a casing b that may be opened, being hinged at -c. Inside the casing there are two walls -dcl providedwith a groove 6 for the insertion of the pins of the roller 'a'.- v

Fron the roller a-- is unwound the paper or the like, which on being taken up by a second roller -f spreads over the seat whence it proceeds to wind round the front roller -'g-. In order to the obtainm-ent of this movement the front roller g isprovided with a toothed wheel g which by means of a; Gall chain or the like is connected to a toothed wheel hcarried by aroller located beneath that marked f.. Said roller -z' is providedwith-coverings -e of rubber or the like-situated on Fig. 9 is a plan projection on line E-F of The axis of this/pinion -L carries a toothed wheel m within the casing -n which toothed wheel 7-4n is connected to the upper toothed wheel by means of a chain p; it should be noted that between the two wheels Ym. and -0. there is a ratio varying for instance from one to three, and this serves the purpose of ensuring that on a single turning of the crank gthe toothed wheel 0 also performs a single revolution, whereas the toothed wheel m performs three, for instance. And as the pinions L k and the toothed wheels ..hg have an equal ratio, these pinions and these wheels also will perform three revolutions.

A special crank q--.acts, as stated, upon said toothed wheel 0. By the turning, as has been set forth, of the roller g the latter causes the paper to advance, compelling it to unwind off the roller a, being further urged hereto by the rotation of the rubber parts i f The paper thus carried forward is wound round the front roller g. This roller g is provided laterally withv a frictionattachment g presenting a certain re- P sistance adapted to allow thevroller to slide loosely so as not to tear the paper whenthe latter finds itself excessively taut for any reason. j

, The front roller gmust-as statedturn a certain number of times, three, for instance; these three turns will bring about the unwinding of a uantity, i. e. of a length or zone of paper suflicient to effect a change of covering on the. seat of the basin.

On'thebasin beingmade use of, the roller eg naturally increases in diameter through the winding of the paper, from time to time, and it is for this reason above all that it is necessary to provide it with the frictional attachment above referred to. Furthermore, the said roller is also provided with a resilient axis so that it can be raised for the purpose of insertin the paper in the first instance, or every time the apparatus is re-charged.

The crank may be provided with a resilient detent catch or the like capable of stopping.

it immediately after the performance of a whole turiu One of those detents alluded to. is of the well-known type, adapted to. warn whoever makes use of the crank that the end of the turn of the latter has been reached. A hand-screw may be suitably applied in combination with the crank in order to avoid the reverse action of the latter.

The roller may be provided with a resilient in *that is o erable in order to permit P .9 P

the removal of the latter when completed,

that is, filled with rolled paper.

The front roller rests on two casings -1-.s-. which acts as supports, while one of the casingsthat marked- 2"- contains the chain mechanism. The functioning will now be clear, which occurs as follows :on the crank g being turned until the detent orthe like gives warning of the completion of the turn, the rotation of the pinion Z is brought about which imparts motion to that marked n7c+ intended-because it is connected. to the he tore-to rotate the roller -i which, in its turn, together with the chain ,g fitted to the toothed wheels h-g' also causes the turning of the front roller "gcarrying the paper along with it. v p Y I The paper carried by the roller,d-'- is also incited to turn in virtue ofthemovement crank; accordingto. this examplethe paper may be shifted, viz it may be chan ed'upon the basin, through the actuation o the a paratus by means of a smallaelectric motor -t-. The latter is initially started-by a detent pulsator i The axis of the electricmotor carries a ini'on -o-" which engages with a wheel with helicoidal teeth wprovided with a small lateral pin w intended to. engage with the teeth of a star-wheelm presenting twelve points, On the motor being started, at each turn of the worm-Wheel the snapping or springing forward of one of the, teeth of the star-wheel -m is brought about. This star-wheelis provided-with four small lateral bolts which contact. on a small spring a'- inorder to permit the disengagement of the whole gearing. I I

As the small bolts located on the star are spaced apart by the distance of three teeth, it is only after the springing forward or snapping of three teeth of the ,stari. c. after the occurrence of three revolutions of the worm-wheel w-- that the motor is aatomatically detached. And this is because a small central connector fixed to the star is always in contact with a. conductor --3 that leads to the motor.

The contact -c also leads to the motor. 811 the star --wbeing turned it happens that when said small plate aencounters z the motor is actuated; and it is for this reason that, as stated, it is only after the springing forward of three of the star m and the performance of three revolutions of the worm-wheel w while the paper has shifted sufliciently for the change to be effected, that the detachment of the motor takes place.

Thus with said electric system the change of paper is brought about through the mere pushing of a contact-button whereas the stoppage of the electric motor occurs automatically as soon as the paper has been changed.

It should be understood that the drawings constitute but a schematic form of example given solely by way of a practical showing of the invention, it being possible for said invention to be varied as to forms and arrangements without however departing from the scope of the concept embodied by the invention.

Thus, for instance, the roller both for the unwinding and for the winding of the strip of paper might be positioned otherwise than as indicated, i. e. at a comparative distance from the basin in order to be as inconspicuous as possible, to wit, hidden, that is, enclosed within the walls, under the flooring, etc. together with their mechanisms.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

1. In combination, a closet seat, rollers mounted front and rear of said seat, a paper roller carried on the rear roller and unwinding over the seat to rewind upon the front roller, said paper being provided with spaced apertures, intermediate traction rollers over which the paper passes from the rear roller to the seat, means for driving the front roller from the intermediate rollers, and means for driving the intermediate rollers to draw off paper from the rear roller to be taken up by the front roller.

2. In combination, a closet seat, rollers mounted front and rear of said seat, a paper roll carried on the rear roller and unwinding over the seat to rewind on the front roller, said paper being provided with spaced apertures, intermediate traction rollers over which the paper passes from the rear roll to the seat, means for driving the front roller from the intermediate rollers, and an upright crank and gear arrangement at the rear of the seat connected to the driving intermediate roller, whereby rotary movement is imparted to the latter.

3. A paper seat cover supplying device, as claimed in claim 2, in which the means for driving the front roller, comprises a sprocket and chain connection between the rollers.

4. A paper seat cover supplying device, as claimed in claim 2, in which the means for driving the front roller includes a friction clutch arranged on the latter to permit the same to slit with respect to its driving force, whereby increase in diameter of the front roll as it takes up paper will not cause the same to become too taut.

5. A paper seat cover supplying device, as claimed in claim 2, including a resilient stop device arranged on the crank arrangement to prevent reverse movement thereof, the crank proper having a reverse screw connection to permit unscrewing of the crank without effecting movement in the gear arrangement.

6. A paper seat cover supplying device, as claimed in claim 1, in which the means for driving the intermediate rollers includes an electric motor, an electric pulsator to incite a number of the coils in said motor, comprising a worm and worm wheel connection for the motor, a pin on the worm wheel, a star wheel operated by the pin having a plurality of contact points in proportion to the number of teeth, a bolt constantly in contact with the motor, a plurality of contact pins and a plate on the motor contacting with the pins for automatically stopping the motor when a predetermined length of paper has been taken up by the front roller.

In testimony whereof I aflix my signature.

ENRICO VALLECGI-II.

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