US1263396A - Scrubbing-machine. - Google Patents

Description

Q. FAUSTINI.

SCRUBBING MACHINE.

APPLICATION FILED IUNEZI. ISH.

Patented Apr. 23, 1918.

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SCBUBBING MACHINE.

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Q. FAUSTINI.

scRuBBING MACHINE.

APPLICATION FILED JUNE 21. |917- n 1,263,396. APatend Apr..23,1918

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Patented Apr. 23,1918.

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scRuBsING MACHINE.

APPLICATION FILED JUNE 2l. |911. 1.,2\3,396.` Patented Apr. 23,1918,.

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QUINTO FAUSTINI, 0F CLEVELAND, OHIO.

scRBBiNG-MACHINE.

To all whom t may concern:

Be it known that I, QUINTO FAUs'riNI, a subject of the King of Italy, resident ot Cleveland, county of Cuyahoga. and State 0f Ohio, have invented new and useful Improvements in Scrubbing-'Machines, of

`which the following is a specitication, thel principleof the invention being herein eX- plained and the best mode in which I have contemplated applying that principle, so as t0 distinguish it from other inventions.

My invention relates to scrubbing machines and particularlyy to that class ot' such machines which are electricallyY driven and are designed for duty in hotels, oliice buildings, apartments and other buildings having large door 'spaces'. More particularly, this improved machine is designedy to be self-contained as to all of the functions required of such a machine and to be very etiicient in its operation and economical in cost of operating the same.

The annexed drawings and the follow-- ing descri tion set forth in detail certain means 'em odying my invention, the disclosed means, however, constituting but one of various mechanical forms in 'which the principle of the invention may be applied."

In said annexed drawings:

Figure 1 represents a side elevation of my improved machine; Fig.. 2 represents a rear elevation; Fig. 3 represents a vertical longitudinal section taken in the plane indicated by the lines III-III, Figs. 2 and 9; Fig. 4 represents a vertical section of a fragmentary portion, taken in the plane indicated by the lines IV-IV, Fig. 2: Fig. 5 represents a front elevation of the machine; Fig. 6 represents a vert-ical longitudinal section taken in the plane indicated by the line VI-VI, Fig. 5: Fig. G represents a bottom View of a brush-holder shown in Fig. 6; Fig. 7 represents a vertical longitudinal section taken in the plane indicated by the line VII-VII, Fig. 5; Fig. 8 represents a horizontal section taken in the plane indicated by the lines VIII--VHL Fig. 1; FigY 9 represents a horizontal section taken in the plane indicated by the lines IX-IX, Fig. 1; Fig. 10 represents a Specification of Letters Patent.

Patented apr. sa, reis.

Application led J'une 21., 191,7. SeriaLNo. 176,002.

vertical section of a fragmentaryportion takenin -the plane indicated by the line yIKL-X, Fig. 9:'Fig. 11 represents a vertical Section of a fragmentary portion taken in the plane indicatedvby line XI-XL Fig. 2; Fig. 11a represents a horizontal section taken in the plane indicated by line XI"XIa. Fig. 11: Fig. 12 represents a transverse vertical section taken in the plane. indicated by the line Xl l-`-XII, Fig. l1. and Fig. 13 represents a diagrammatic View of the. electrical circuit. Fig. l. Fig. '2 and Fig. 5 are shown t0 a smaller scale than the balance of the figures.

Referring tothe annexed drawings, I shall first refer by reference numeralsto a number ot' main parts of my improved machine which are a frame 1 with 'suitable subdivisions properlydesigned to support and aline the various operating parts, as will be hereinafter fully explained, a motor 2; an extension cord or power cable 3; a fresh water tank 1; a tank 5 for used or dirty water; a plurality of scrubbing brushes G; a Vwiper T: a drum 8 upon which the power cable is automatically wound or from which it is automatically unwound; a lever 9 for raising and lowering the scrubbing brushes from the floor being cleaned: a lever 10 for raising or lowering the wiper from the tloor; a switclill for throwing the motor into circuit; a chain 12 for driving the, scrubbing devices and a pumpL 11 from the motor; a pulley y15 utilized in the pump drive; a belt 16 for said pump; a comparatively large front wheel 17 and two-comparatively small casters 18 for supporting the front and rear of the machine, respectively, and upon which wheel and casters the machine is designed to be rolled about easily by means of a handle Q0; a sn'iallcaster'19 for the wiper frame; a main pipe 21 from the fresh water tank 4, branch pipes QQ Jfrom said main pipe 21 and fresh water distributers Q3; a main scrubber shaft Q4: a worm gear drive 25 for each scrubbing device G; a` clutch Q6 designed to automatically lct out or automatically Vwind up the into the tank 5 designed to receive the dirty water; a suction air pipe QS leading from the used water tank to the pump 14; a shaft .29 from which the cable drum S and the pump pulley 15 are driven; a trolley pole 30 with the swivcled armv 3l carrying trolley wheels 32, said pole 30 being mounted upon the top ot frame l.

Other features with various details will now be filled into the several main parts hereinbefore mentioned to'connect the same up into an operative whole comprising my improved scrubbing device.

The motor 2 is provided with the motor shaft 36 upon which is mounted sprocket 37 over which the chain 12 runs to a sprocket v39 on the main scrubbing shaft 24. The shaft 29 from which the cable drum 8 and the pump pulley l5 are driven, rotates in bearings on brackets 73, 73, secured to the gear case 4.1. On this shaft 29 is mounted a gear 7'2 which is driven by a pinion 13. This pinion is secured on a shaft 33 journaled in a bracket 110 extending t' rom one of the brackets 73. This shalt 3S-also carries a sprocket 109 disposed in line with the sprockets 37 and 39 so that it is also engaged and actuated by the chain 12.

The main scrubbing shaft 24 is provided l with five worm portions 40, respectively, meshing with the wormv gears Q5 to rotate the scrubbing devices G. This main scrubbing shaft 24 and the several worm portions and worm gears and connected parts are contained within a gear case l1. The several worm gears Q5 are splined to shafts 4Q to the. bottom of which are secured the scrubbing brushes 6. by means of a brushholder 43, said scrubbing devices 6 being secured in said brush-holders 43 by lug 112 and two\ screws 113` as plainl)Y shown in Figs. 6 and 6a. Said brush-holder 13 is secured to the squared bottom end l5 of the shaft 4Q by means ol a hub portion il and the screw 46, as plainly shown in Fig.

6. Shafts 42 and hence the scrubbing de-y vices 6 are raised and lowered by a frame 108, Fig. 9, provided with lateral extensions 47 for each ot' the scrubbing devices 6, each of these extensions havinga boss 47. Said extensions 17 are mounted on shaft '-12 between a collar 58 adjustably secured to the shaft 4'2, and a spiral spring 54 whose lower end bears upon a second collar 55 adjustabl)v secured to the shaft. 42, the tension of said spring 54 beingsuch that the scrubbing device G is resiliently held to contact ,with the floor and thus compensation is made for the irregularities of the floor. The main frame 108 is in turn 'raised and lowered by means of the operating lever 9, which is shown. in Fig. 1. in that position in which the scrubbing devices 6 are in contact with the Hoor, the

Lacasse connections between said operating lever 9 and said main frame 108 being link 9. pins 51 and 51', lever' 3l, main shaft 5'2, the pair of levers 4:9, pins 50 and50 and the pair of short links 48, all as plainly shown in Figs. 1, 2 and 8.

The wiper 7 is oitl the construction and shape plainly shown in Figs. 9 and 10, and as plainly shown in said Fig. 9, is widened out to comprehend a space somewhat more than the width of the machine and narrowing back to quite a sharp angle at the rear of the machine is gathered and segregated as the machine is propelled. Said wiper comprises a lower two-ply rubber portion, as shown in Fig. 10, held in position by rivets 35 between two bars 69 and its upper end. To these bars are secured short brackets 70 by means of rivets. Pivot pins 71 are fastened in these brackets on which lateral supporting links 59 are oscillatorily mounted. These links 59 in turn .are p'ivoted to the main frame 1, as plainly shown'in Fig. 1. The wiper 7 is raised and lowered by two levers 60 secured to the shaft 61. These levers are pivotally connected toa casing 62, said casing also supporting the rear ot the wiper 7. The shaft 6-1 is journaled in brackets 64 fastened to the main frame. To the shaft 61 is also secured an arm 65 operatively connected to the lower end of the lever 10 by means of a short link 67 and pins G6 and 68, said lever being shown in Fig. 1 in that position in which the wiper 7 is in contact with the floor.

Secured in the lower end of the tube 2.7 which leads into the dirty water tank 5 is a hollow member 96, having a mouth 97 disposed adjacentlY to the tioor when the 'n'iachine is in operation and contiguously to the. sharp angle formed by the two arms of. the wiper 7, so that the dirty water gathered and segregated in said angle is adapted to be picked up by said mouth 97, as hereinafter fully explained. Said hollow member 96 is provided with a bracket portion comprising two arms 98 forming a support for van axle 99 upon which the. caster 19 for the wiper frame is mounted. Said hollow member 96 is also formed with two lugs 100 formed with suitable holes for the reception of a pin 101. said pin also passing through a suitably alined hole ot an upward extension 102 of the member 62, a compression spring 103 being secured upon said pin 101 and ot a tension such vas to bring the angle oi the Wiper 7 to bear with the necessary pressure upon the floor and to compensate for any wear upon said angle in the wiper.

The shaft Q9 from which the cable drum 8 and the pump pulley 15 are driven, carries two pulleys and 76, pulley 75 being loose into which angle the water" upon the shaft 29. Secured to pulley 75 are clutch teeth 26 of the clutch 26, and

' splined to shaft 29 is another member 262 of said clutch 26. Running over the pulley is a round belt 7T which also runs over a pulley 78 secured to one side of the cable drum 8, said drum being rotatably mountedon a shaft 79. The extension cord or power cable 3 after passing between the two trolley wheels 82 and into the trolley pole 30, emerges from a slot 30 in said pole and is passed to and under a wheel 80 loosely mounted upon a shaft 81 and thence said power cable is wound upon the cable drum 8. Said shaft 81 and hence the wheel 8O is free to have a limited up and down movement, as will be hereinafter fully explained. Said shaft and wheel are supported by a pivoted arm 82 of the construction plainly shown in Fig. 11 which is pivoted t0 and supported by the shaft 79. Secured to the lower member 88 0f said arm is a link 85 which is in turn pivotally connected by means of a link 86 to a member having arms 86 and 88 pivoted at 87 on a bracket fixed to the main frame 1. The lower arm 88 of this member is formed into a forked end serving as a shifting yoke for the clutch member 262. An integral extension 84 of the arm 82 forms a bearing for a shaft 115 loosely supporting a roller 116, Figs. 11a and 12, and this roller is so disposed with reference to the pulley 80 that the power cable 3 passes between said pulley 80 and said roller 116, the purpose being to prevent the separation of the cable from said pulley 80, the latter traveling longitudinallv of the shaft 81 upon which it is loosely mounted and along the whole face of the roller 116 accordingly as the cable 3 is wound around and across the drum '8. The limited downward movement of the pulley 80, shaft 81, extension 84, shaft 115 and roller 11.6 is effected by gravity and the same takes place whenever there is any slack cord. It will be evident that this downward movement of the pulley 80 will, through the connecting devices shown in Fig. 11, effect the junction of the clutch members 26 and 262 so as to allow the belt 77 to turn the cable drum 8 to wind up such slack cord. Now, as soon as said slack is entirely wound up, the tension in the cord, that is, the upward pull of the cord will lift the pulley 80, and connected parts, which through the connecting devices hereinbefore mentioned will disengage the clutch parts 26 and 262 and stop the rotation of the cable drum 80.

The pump pulley 15 is supported upon a shaft 15 to which are connected crank arms 111 which actuate theI pistons of the double acting pump '14 by means of the connecting rods 88. This pump through suitable connections 89 provided with check valves 90,

is connected with the air pipe 28 leading water from the angle at the rear of the` wiper 7. Said tank 5 is provided with a float 91 fastened to a rod 92 having a head 93 and passing through a suitable hole in the fiange member 94 secured to the top of the tank 5. A rubber disk 95 is secured to the bottom of the head 93. Vhen the tank 5 is filled with dirty water to a level `which will raise the float 91, a visible signal will be thereby given to the operator and in addition air will be admitted to the tank 5 so that by no chance will the pump 14 be flooded with water. A faucet 5 is provided for emptying this tank 5.

As shown in Fig. 7, the fresh water tank 4 is fitted with a valve 106 having a plug 106.

This valve is provided as a simple means of shutting off the steady flow of fresh water into the main pipe 21 from which the water regularly passes through the branches 22 to the pair of distributers 28 plainly shown in Fig. 5. The valve is held in the up position during the operation of the machine by a wedge under the head or other suitable means.

The front wheel 17 is mounted upon an with a usual plug 117. `The lower end of' the two conductors in this cord 3 are each fastened to a collector ring 118, 118, mounted on the drum 8. In contact with each collector ring is a brush 119, 119. From each brush the current is carried to a binding post on an insulated block 114 and thence to one end of the switch 11. These means permit the winding or unwinding of the drum 8 without interfering with the passage of the current to the switch. When the switch 11 is closed it is evident that the current passes through the motor, thus causing the brushes 6 to rotate and the pump 14 to create a vacuum for sucking the dirty water into the tank 5.

llVhat I claim is:

In a scrubbing machine, the combination of a main frame; a motor mounted therein;

scrubbing devices actuated by said motor;

a vacuuni in said tank; a float disposed in said tank; a rod secured to said ioat and extending upwardly therefrom; said tank being provided with an opening of larger diameter than the diameter of said rod and through Which opening said rod extends; a closure for said opening secured to said rod kand adapted to be removed from said openthis 19th day of June,

QUNTO FAUSTNl.

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