US1211948A

US1211948A - Scrubbing-machine.

Info

Publication number: US1211948A
Application number: US80479513A
Authority: US
Inventors: George F Koster; Hector D Macintyre
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-12-05
Filing date: 1913-12-05
Publication date: 1917-01-09
Anticipated expiration: 1934-01-09

Description

G.'F. KOSTER & H. D. MAcINTYRE. SCRUBBING MACHINE.

APPLICATION FILED DEC. 5, I913.

1,211,948. I Patented Jan. 9,1917.

3 SHEETS-SHEET I.

WITNESSES lI/ T095 1 Y mun-i l e. F. KOSTER & H, n. MAcINTYREL SCRUBBING MACHINE.

APPLICATION FILED DEC-5.1913.

Patented Jan. 9, 1917.

3 $HEETS-SHEET 2- WITNESSES G. F. KOSIEB & H. D. MACINTYRE. SCRUBBING MACHINE.

APPLICATION nuao mac. 5. I913.

1,21 1,948. Patented Jan. 9,1917.

3 SHEETSSHEET 3.

.109 Ill WITNESSES 0 7/ D STATES PATENT OFFICE.

GEORGE F. KOSTER, OF WHITE PLAINS, AND HECTOR D. MAOINTYRE, OF BROOKLYN,

I NEW YORK.

' SCRUIBBING-MACHINE.

Specification of Letters Patent.

Patented Jan. 9, 1917.

To all whom it may concern.-

Be it known that we, GEORGE F. Kosrnn,

a citizen of the United States, residing at White Plains, in the county of VVestchester and State of New York, and HECTOR D.

MACINTYRE, a subject of the King of Great Britain, residing in the borough of Brooklyn, in the county of Kings, oi! and State of New York, have invented an Improve- 1o ment in Scrubbing-Machines, of which the following is a. specification.

Our invention relates to a scrubbing machine, and the object thereof is the provision of an apparatus adapted to be moved over the surface of a stone, cement or other floor for efliciently cleaning the same, and in the use of our improved apparatus, we preferably employ a cleaning fluid which is constantly supplied to suitable scrubbers to clean the floor or other surface, and which cleaning fluid is also continuously conveyed away from the apparatus after having been used.

Our invention also includes a means for drying the surface when a liquid has been employed to clean the same.

Our improved scrubbing machine com .prises a casing having a renovator base adapted to come into contact with the surface to be cleaned, a scrubber or scrubbing device, means for supplying a cleaning fluid to the said scrubbing device, means for rotating the scrubbing device in a given direction, a rotary refuse discharger, means for turning the same preferably in the opposite direction to that in which the scrubber is turned, means for controlling the speed at which the scrubbing device and the refuse remover are revolved, and also devices for Q drying the surface when a liquid is employed for cleaning the same, as will be hereinafter more particularly described.

In the drawing, Figure 1 is a central sectional elevation, illustrating our improved scrubbing machine. Fig. 2 is a sectional plan taken on line 22, Fig. 1. Fig. 3 is an inverted plan. Fig. 4 is a perspective view, illustrating the toe base at the ends of the veins of the refuse remover. Fig. 5 is an elevation of the brushes or scrubbers. Fig.

6 is a sectional elevation illustrating a modified form of a device for controlling the speed of the rotary members. Fig. 7 is a diagrammatic illustration of the electrical connections employed in this modified form of the controller mechanism, and Fig. 8 is a partial sectional elevation, illustrating the use of the modified form of the devices for supplying the cleaning fluid and removing the refuse.

Referring to the drawing, and particularly to Figs. 1, 2 and 3, our improved scrubbing machine comprises a'casing having a cylindrical body portion 10 and a'bell-shaped base 11. These members are preferably secured to one another by means of screws 12, and the periphery of the bell-shaped member is adapted to contact with the floor or other surface to be cleaned when the appa ratus is moved over the same for this purpose.

The cylindrical body member 10 is fitted with a cover 13, which is secured in position in the top thereof by means of the screws 14 or otherwise. Passing centrally through the body member 10 and extending into the bell shaped base 11, we employ a hollow shaft, indicated at 15. The shaft 15 passes through and is journaled in a bearing 16, connected to which is a collar 17. The collar 17 is journaled in a flange 18, fixed on or integral with the base 19 of the cylindrical portion 10 of the casing. The collar 17 is provided with a disk 20, which, at its outer portion, is beveled or flanged, as indicated at 21. The cylindrical casing 10, adjacent its lower end, is provided with a raceway 23,

in which'there are bearing balls 22, which also contact with the outer surface of the flange 21 of the disk 20, so that this disk,

' and the parts connected therewith, may rotate on this ball bearing.

24 designates a motor casing, which is secured to the disk 20 by means of the screws '25 or otherwise. At its upper end, a ring 26 is secured to the motor casing 24, and at its periphery this ring 26 is flanged, as indioated at 27, the flanged portion of the ring being adapted to fit within the cylindrical portion of the casing 10. Immediately above the ring 26, a ring 28 is connected to the cylindrical casing 10. This ring 28 is provided with a flange 29, adapted to overlap the flange 27 of the ring 26, between which we employ bearing balls 31, so that the motor casing is also adapted to turn. on a ball bearing at its upper end.

Suitably connected to the ring 26 is a collar 84, which will be hereinafter described, and through and in which the hollow shaft adapted to receive the body 34 of a suitable brush, the bristles of which are indicated at 35. The hub 32, with its brushes, are slidable longitudinally on the shaft 15, but are made to turn therewith by means of a key 36. The lower end of the shaft 15 is somewhat reduced in diameter and is threaded to receive a nut 37, by means of which the hub and brushes are secured on the shaft.

The arms 33 may be made in any suitable manner to receive and hold the brushes in position. By reference to Figs. 1 and 5, it

will be seen that we have illustrated a dovetail connection between these parts, although, as will be understood, any suitable construction may be employed, and furthermore each brush may be held in position by a set screw or otherwise, so as to be readily removed and a new brush placed in position whenever this becomes necessary.

Within the bell shaped member 11, we employ an inverted bow-shaped refuse discharger 38. This is provided with a flange 39, by means of which it is suitably secured to the collar 17 so as to turn with the same and the motor casing 24. At its periphery, the bowl shaped member 38 is just sufficiently less in diameter than the bell shaped member 11 to lie immediately within the same. Its curvature, however, is such that there is a space between these members, which increases with the distance from their peripheries.

Interiorly the bowl shaped member 38 is provided with a series of vanes 40, extend ing from the periphery thereof, running spirally and each terminating at an opening 41, provided in the bowl shaped member adjacent'the flange 39. At the lower end, each vane 40 is provided with a rubber toe piece 42, adapted to contact with the floor or other surface to be cleaned, in such a manner that with the revolution of the bowl shaped member, this toe piece acts as a squeegee to take up the cleaning fluid and refuse, and by centrifugal action to carry the same upwardly along the surface of the vanes 40 so as to discharge this refuse through the openings 41. In order that the edge of the bell shaped member 11 may be in close contact with the surface to be cleaned, the same is provided with a shoe 43, made of rubber or other suitable material.

Between' the bell-shaped member 11 and the inverted bowl shaped member 38, we emfrom the discharge chamber 47 through the wall of the bell shapedmember 11, to a discharge receptacle 49, which is suitably secured to the said bell shaped member. This receptacle 49 may be provided with a cover 50 arranged in the top thereof, and also with a drain 51 arranged in the bottom thereof. On the opposite side of the bell shaped member, we preferably provide a casing, indicated at 52. Within this casing, are series of heat coils 53, controlled by a suitable rheostat 54 mounted on the casing 52, or otherwise. Attached to the top of the casing 52 is an elbow inlet connection 55, and secured to and extending from the bell shaped member 11, is a nozzle 56, one end of which opens into the discharge chamber 47 and the opposite end into the elbow inlet connection 55. In a suitable position, the bell shaped member 11 is also provided with a socket 57, adapted to receive a handle 58, by means of which the apparatus may be moved over the floor or other surface to be cleaned. As shown in Fig. 1, the socket 57 may be secured to the bell shaped member by means of screws 59, and the handle 58 secured in the socket 57 by a set screw 60.

Surrounding the shaft 15, :immediately beneath the cover 13, we employ a collar 61, which is preferablyfixed to the shaft by means of the set screws 62. In diametrically opposite positions, lugs 63 are fixed to the collar'61, and bell crank levers 64 are pivotally connected to the lugs 63. At one end of each of the bell crank levers 64, there other arm of each bell crank lever is pivotally connected to one end of a link 65, the

opposite end of each link 65 being pivotally connected in a lug 66, secured to the friction disk 67 surrounding the shaft 15, and on its upper surface provided with a layer of leather, felt or any other similar material.

Secured to and extending from the cover 13, preferably in diametrically opposite positions, are tubes or cylinders 69, in each of which there is a plunger or piston 70 having a stem or piston rod 71 extending through a plug 72, adjustable to position in the tube 69, between the inner end of which and its plunger, and surrounding its stem, is a spring 73 for normally maintaining the plungers in contact with the layer of leather or felt 68, secured to the upper surface of the friction disk 67, in order that the action of the governor may first force the friction disk against the plungers before the friction disk comes in actual contact with the inner surface of the cover 13. This, as will be understood, provides for the friction disk coming gradually into contact with the cover member so as to insure against undue strains in the action of the go ernor.

Fixed on the shaft 15, within the motor casing, is an armature 74, provided, as is customary, with a commutator 75. Fixed to the walls of the motor casing are a plurality of fields and field coils 76, which may be secured thereto by means of bolts 77 or otherwise.

Exteriorly of the cylindrical portion 10, are secured

terminals

78 and 79, together with a suitable switch 7 8. Through a suitable conductor, the terminal 78 is connected to the collector contact 80, bearing against a collector ring 81 secured to the collar 84.

Similarly, the terminal 79, through a suitable conductor, is connected to a collector 82, which contacts with a collector ring 83,

also secured to the collar 84. The collar 84 j ifield coils by a conductor wire 88, from which there is a branch conductor wire 89 leading to the brushes 87. The conductor wire 90 extends from the opposite terminal of the field coils to the collector ring 83,

and a branch conductor wire 91 extends from the conductor wire 90 to the opposite terminal of the brushes 87 The electrical connections are such, and the motor is so designed, that upon current beingsupplied thereto the armature will turn in one direction and the fields and the motor casing in the opposite direction, so that the brushes are revolved in the direction corresponding to the rotation of the armature, and the ceptacle 49, suitably secured in position exteriorly to the cylindrical member 10, and at its opposite end suitably connected to the hollow shaft 15. As indicated in the drawing, in making the connection'between this pipe and shaft, we employ a socket 94, at the end of the shaft, a pipe connection 95, a portion a branch 97 extending therefrom in alinement with the shaft 15, and provided with a cap 98, which may be removed, when required, to gain access to the bore through the hollow shaft.

In the operation of the hereinbefore described apparatus, the receptacle 49 is provided with the required quantity of Water or other liquid, employed in cleaning, and by any suitable means, the same may be caused to flow through the pipe 93 to the interior of thehollow shaft, by which, as will be understood, it is supplied to the brushes or other scrubbing device employed. Furthermore, as will be apparent, after the flow of the cleaning liquid has been started, it will continue to flow, due to the siphon action made possible by the construction described. As the brushes throw off the cleaning liquid and refuse, the same is scraped up by the toe piece 42 and conveyed by the vanes 40 through the apertures 41 to the discharge chamber 47 and thence by the pipe connection 48 to the receptacle 49, Where the dirt or other refuse settles to the bottom of the receptacle and the cleaning liquid may pass through the apparatus again and thus be remployed.

As will also be understood, there is considerable air discharged through the openings 41 into the discharge receptacle 47, due to the rapidity with which the member 38 revolves. This air thus discharged will be forced through the nozzle 56 into the elbow 55, where it acts as an injector, drawing additional air into the elbow 55, all of which is caused to pass into the casing 52, and to circulate therein over the heat coils 53, which dry, as well as heat, the air thus admitted to the casing 52, so as to take up any moisture which may remain on the floor or other surface being cleaned after the apparatus has passed over the same.

As is shown in Fig. 8, and as will be apparent, we may employ a means for a constantly fresh supply of cleaning fluid, and also for continuously conveyin the refuse from the apparatus. This pre erably comprises a double hose, indicated at 99, containing a supply pipe 100, which is suitably connected at any desired point to the pipe 93,'and a discharge pipe 101, which is suit ably connected to the discharge chamber 47 ploy a casing 103, to be secured to the cy1in-,

drical member 10 and containing a double pole fuse blockv 104 from one'terminal, on one side of which a collector wire 105 leads to the collector 106 which is in contact with a collector ring secured on the collar 84. The corresponding terminal of the fuse block is connectedto a resistance box 107, which, by a conductor wire 108, is connected to the collector 109 on a second collector ring of the collar 84, which collector ring, by

a conductor wire 111, is connected to one of the brush terminals, While the otherbrush terminal is connected by the conductor wire 110 to the collector ring against which the collector 106 is in contact. One terminal on the'opposite side of the fuse block 104 is connected by a collector wire 112 with the collector 113 in contact with a third collector ring, secured on the collar 84, and the corre sponding terminal of the fuse block is connected to a resistance box 114, which, by a suitable conductor wire'115 is connected to a collector 116 in contact with a fourth collector ring on the collar 8 1, the saidthird and fourth collector rings being connected by conductor wires 117 and 118 with the respectiveterminals of the field coils. In this instance, a suitable switch 119 controls a passage of the'current to the fuse block 10 1,v and as will be apparent, by adjusting the re-.

sistance boxes 107 and 114:, the current supplied to the armature and fields may beso controlled as to govern the speed at which the armature and the fields revolve. This preferably is in the ratio of 1 to 10, although of course, under different circumstances, different speeds may be necessary.

We claim as our invention:

- 1. A scrubbing machine comprising a casing, a scrubber Within the same, means for revolving the scrubber in one direction, a refuse remover concentric with said scrubber and also Within the casing, and means for revolving the refuse remover in the opposite 7 direction.

2. A scrubbing machine comprising :1 casing, a scrubbing device within the same, means for supplying a cleaning fluid to the said scrubbing device, means for revolving the scrubbing device in one direction, a device concentric with the said sorubbing device. for removing the scrubbing refuse from the casing, and means for revolving the last aforesaid device in anopposite direction.

volving the last aforesaid device in the op- Y posite direction, and means for regulating the aforesaid means for revolving the said devices.

4. A scrubbing machine comprising a casing, a scrubbing device within the casing,

means for revolving the scrubbing device in one direction, a device concentric with the said scrubbing device for removing the scrubbing refuse therefrom, means for re volving the last aforesaid device in the opposite direction, means for regulating the aforesaid means for revolving the said devices, and means for supplying a cleaning fluid to the said scrubbingdev ce.

5. A scrubbing machine comprising a casing, a scrubber within the casing, means for supplying a cleaning liquid to the scrubber, means for revolving the scrubber in one oli-v rection, a device concentric with said scrubber for removing the scrubbing'refuse from the casing, means for revolving the last aforesaid device in the opposite direction,

and means for drying a'surface after the same has been cleaned.

6. A scrubbin machine comprising a casing, and a bell -shaped base, the edge' of which is adapted to contact with a surface to be cleaned, a shaft, a brush secured thereto, a refuse remover mounted concentrically With said brush within the said bell-shaped base, and means for turning the said shaft and brush in one direction and the said refuse remover in the opposite direction.

7. A scrubbing machine comprising a casing and a bell-shaped base, the edge of which is adapted to contact with a surface to be.

cleaned, a shaft, a brush secured thereto, a refuse remover mounted concentrically with said brush within the said bell-shaped base,

means for turning the said shaft and brush in one direction and the said refuse remover in the opposite direction, and means for regulating the speed at which the said shaft and brush and refuse remover are revolved.

8. A scrubbing machine comprising a casing having a bell-shaped base, the edge of which is adapted to contact with a surface to be cleaned, a hollow shaft, a brush secured to the said hollow shaft at the lower end thereof, means for supplying a cleaning liquid through the said hollow shaft to the said brush, va refuse remover mounted concentricaliy with said brush within the said base, and means for revolving the said shaft and brush in one direction and the said refuse remover in the opposite direction.

9. A scrubbing machine comprising a casing having a bell-shapedbase, the edge of which is adapted to contact with a surface to be cleaned, a hollow shaft, a brush secured to the said hollow shaft at the lower end thereof, means for supplying a cleaning liquid through the said hollow shaft to the said brush, an inverted bowl shaped shell within the said bell-shaped base and mounted concentrically with the said hollow shaft, there being a discharge chamber between the shell and the upper portion of the said bell-shaped base, a series of spirally arranged vanes on the inner surface of the said shell, adapted at one end to contact with the surface which has been cleaned,

and terminating at the opposite end at adischarge port leading into the said dis.- charge chamber, and means for revolving the said shaft and brush in one direction and the said shell in the opposite direction.

10. A scrubbing machine comprising a casing having a bell-shaped base, the edge of which is adapted to contact with a sur-.

spirally arranged vanes on the inner sur-' face of the sa1d shell, adaptedat'one end to contact with the surface which has been cleaned and term nating at the opposite end at a discharge port leading into the said discharge chamber, means for revolving the said shaft and brush in one-{direction and the said refuse chamber in the opposite direction, a receptacle secured to the said bellsecured to the said hollow shaft at the lower end thereof, means for supplying aicleaning liquid through the said hollow shaft to the sa1d brush, an inverted bowl shaped shell mounted concentrically with the said hollow shaft, there being a discharge chamber between the shell and the upper portion of the said bell-shaped base, a series of spirally 4/ arranged'vanes on the inner surface of the said shell, adapted at one end co contact with the surface which has been cleaned and terminating at the opposite end at a discharge port leadinginto the said discharge chamber, means for revolving the said shaft and brush in one direction and the said shell in the opposite direction, a receptacle secured to the said bell-shaped base, a pipe connection between the same and the said discharge chamber, a second casing open at its bottom and also connected to the said bell-shaped base, a heating medium within the said second casing, and pipe connections from the said discharge chamber to the said second casing providing for the discharge of air from the said dis- .charge chamber to the interior of the said second casing.

Signed by us this 22nd day of November,

GEO. F. Kos'rnn. HECTOR D. MacINTYRE. Witnesses: a

BERTHA M. ALLEN, MARIE D. Wonnnns.