US926232A - Floor-polishing machine. - Google Patents

Description

I. B. BARRIRE.

FLOOR POLISHING MACHINE.

APPLIGATION FILED NOV.24, 1908.

Patented June 29, 1909.

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FLOOR POLISHING MACHINE.

APPLIOATION FILED NOV. 24, 1908.

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FLOOR POLISHING MACHINE.

APPLIUATION FILED Nov.24,1sos.

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.providedwith a curved cutaway portion 2 ISIDORE B. BARRIRE, 01* WATERBI 'RY, ONiY EOllClIl.

FLOOR-POLISHING MACHINE.

Specification of Letters Patent.

Patented June 29, 1909.

Application filed November 24, 1908. Serial No. 464,234.

To all whom it may concern;

Bev it known that l, lsinonn B. BARRIRE, a citizen of the United States, residing at \Vaterbury, in the county of New Haven and State of'Uonnecticut, have invented certain new and useful Improvements in F loor-Polishin Machines, of which the following is a specification, reference being had therein to theaccompanying drawing.

This invention relates to surfacing machines especially adapted for treating floors or thelike, and has specially in view a novel arrangement of operating mechanism therefor which will'permit of the machine operating upon surfaces closely adjacent to walls, and also the arrangement of the power mechanism so that it will be inclosed within the. body of the machine so that dust can not gain access thereto.

In carrying out the objects of theinvention generally stated above it will of course be understood that the essential features involved are susceptible to changes in details and structural arrangements, but a preferred and. practical embodiment of the same is in the accompanying drawings wherein Figure 1 is. a side elevation of the improved surfacing machine. Fig. 2 is a top plan view. Fig. 3 is a vertical sectional view. Fig. 4 is a horizontal sectional view. Fig. 5 a detail view of the front abrasive rollers and their supports, one of the rollers being shown in section. Fig. 6 is a detail view of the reel or drum for supporting the connection with a source of electrical supply. Fig. 7 is a detail sectional view of a portion of said reel or drum. Fig. 8 is a perspective view of a belt shifter employed in connection with the present invention. Fig. 9 is a fragmentary sectional detail view of the adjustable support for the front abrasive rollers of the machine showing the slidable relation of said support and the bod'yj of the machine.

Like characters of reference designate corresponding parts'in the several figures of thc Referring to the accompanying drawings, 1 designates the body of the machine which is preferably rectangular shaped, and has the lower corners of its front and rear ends and 3, respectively which permit of the front and rear abrasive rollers 4 and 5 to operate partially beneath the body of the tion of thc bodyhas a truck 9 held in piv otal relation with its underside and which is provided with a horizontal-arranged extension frame 10 which receives one end of a steering rod 1-1 that projects through the body of the machine from th top thereof, and at its upper end is provided with an 'operating handle or lever 12 which is in a position to be reached by an operator sealed upon the seat 13 of the top of the said body 1. Wheels or rollers 14 are carried by said truck 9.

The body 1 of the machine at approxt mately its central portion carries vertically arranged guide rods 16 that are oppositely disposed and each provided with a. longitudinal groove or slot 17 for the reception ofv a frame 18, the lower horizontal member 19 of which is provided on opposite front and rear faces with pivot ears 220-4 1 which receive the pivot ends of roller supporting bars 2223 for the front and rear abrasive rollers 4 and 5, said bars 22- projecting through the front and rear end of the body and being provided with end bearings 24-25 for theroller shafts 26-.'27. The upper horizontal member of the frame 15 is provided with a thrcudcd opening for the reception of a screw 29 which extends through bearings 30 in the top of the body 1, and at its outer end is provided with a hand wheel 31 for rotating said screw to raise or lower said frame, to cause the front and rear rollers to be raised or lowered as desired.

An electric motor 32 is suitably mounted within the body of the machine and has a belt connection 33 with a pulley 34; fast on a horizontally arranged shaft -34 which extends transversely across said body and at one end portion within said body, said shaft 34" carries a sprocket wheel 35 which has a sprocket chain connection 36 with a sprocket wheel 37 mounted on the rear abrasive roller shaft 27, the lower flight of said sprocket chain 36 passing over a sprocket wheel 38 mounted on tho propelling and supporting shaft 7 and adapted to impart a rotary u'iovenient to the latter, as

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well as to the rear abrasive roller 5, to propel the machine, as will be readily understood. The said shaft 34?, also. has a side pulley 39 fast thereon and which has a belt connection 40 with a pulley 41 fast on a transversely extending shaft 42 which carries a sprocket wheel 43 having a sprocket chain connection 44 with a sprocket wheel 45 mounted on the front roller supporting shaft.

shaft'26. A pulley 46 is mounted on said shaft 34 adjacent to the side pulley 39 and has a rearwardly extending belt connection 47 with a pulley 38 mounted on a transversely extending shaft 49 arranged horizontally in the rear portion of the body 1 of the machine. Said shaft 49 also carries three pulleys 50, 51, and 52, respectively, the pulley 50 being fast on the shaft and turning therewith; the pulley 51 being loose thereon, and the pulley 52 being of the well known type termed reversing, and which rotates oppositely to the rotation of said Two belts 53 and 54 are used for 7 connecting said pulleys with a pulley 55 shifted thereon.

carried by the power shaft 7, said pulley 55 being a long one to permit of the belts being A belt shifter 56 has its handle portion 57 projecting through and above the top of the body 1, and is provided with an intermediate flattened portion 58 which has a pivotal engagement 59 in the top of the body, the lower power portion projecting-into said body and being provided with an angular end 61 provided with longitudinal openings 62 through which said belts 53 and 54 pass, said openings being so arranged that the belts are held in a spaced apart relation. Assuming the parts to be in the position shown in Figs. 3 and 4 of the drawings, it will be seen that by rocking the belt shifter 56 on its pivotal mounting, the belts 53 and 54 will be shifted so that the belt 53 will be on the loose pulley 51; the belt 54 will 'be on the reversin pulley 52, and the pulley 50- will be an id er; The shifting of the belts will impart a reverse movement to the power shaft 7, and, of course, reverse the movement of the machine.

A dustreceptacle or scoop is held closely adjacent to the rear of each of the front and rear abrasive rollers 4 and 5, said dust receptacles being designated 63 and 64, respectively and are of substantially the same Width at their mouth portions as the longitudinal length of said rollers. A conveyer pipe 65 extends from each dust receptacle 63-64, said pipes having a junction 66 within the body 1 and extend upwardly therein and through a suction fan casing 67 and deliver the dust into a dust bag or receptacle 68. The fan or blower 69 of'said casing 67 is mounted on a shaft 70 carrying a pulley 71 which has a belt connection with a pulley 72 carried by the shaft 34*.

From the foregoing description it will be seen that when power is applied to the shaft- 34" through its connection with the motor 32, a rotary movement. will be impartml to the propelling shaft 7 of the machine, the front and rear abrasive rollers 4 and 3, and the suction fan or blower (39, and it will also be seen that all of the operating mechanism of the machine is arranged within the body of the machine so as to be protected from the dust incidental to the grinding operations of the rollers 4 and 5 upon the floor orother surface. a

A drum or reel 7 3 is rotatably mounted on a transverseshaft 74 arranged horizontally in the rear of the body 1 and has wound thereon a wire 75 which has one end'portion passing an opening 7 6 formed in the rear end of the body 1 and which is connected with a suitable source ofelectrical supply.

The other end of said wire or conductor passes from said reel or drum 73, up and through the top of the body 1 and connects with a switch 77, having the usual connections 78, 79 with the motor 32. The shaft 74 carries two pulleys 80-81, the pulley 80 being fast thereon, and the pulley 81 having a reversing connection with said shaft. A belt 82 connects said pulleys with a pulley 83 fast on the shaft 49. A belt shifter 85 similar in shape to that belt shifter 56,

has a pivotal mounting 86 in the top of the body 1, and an angular end 87 adapted to shift the belt 82 from the pulley 80 to the reversing pulley 81, or vice versa, as desired. It will be seen that the described connection of the motor with its source of electrical supply, is one that permits of the same having a wide range of movement over the surface being treated, owing to the fact that the reelor drum will be operated to wind or unwind its conductor in accord ance with the direction it, is traveling relative to the source of electrical supply.

Preferably the abrasive rollers are arranged relative to the body of the machine as shown in Figs. 2 and 4 of the accompanying drawings. spaced apart and having their outer ends projecting slightly beyond the body of the machine, so as to adapt them for working close to walls or other vertical obstructions. The rear roller 5 is arranged to act upon the space between the front rollers, said rear roller being of less width than the width of the body.

Any suitable abrasive material may be used for the-working surfaces of the rollers,

and prefer-ably said abrasive material is held thereon in such a manner that it may be readily detached when worn out, or to permit of finer or coarser material to be used, as circumstances may render necessary or desirable. A convenient means for retaining the said material in detachable re lation with the roller is shown in Fig. 5

The front rollers 4 being llit) wherein screws 88 are used the heads of which are sunk well into the material R9.

Claims:-

1. A machine of the character described comprising a body provided with propelling mechanism, side guides carried by said body, a frame slidably mounted in said side guides, front and rear abrasive rollers having a pivotal connection with said frame, and means for adjusting said frame.

2. A machine of the character described comprising a body provided with propelling mechanism, guiding standards carried by said body, a frame slidably mounted in said standards, abrasive rollers having a pivotal connection with said frame, and a screw carried by said body and adapted to raise or lower said frame.

A machine of the character described comprising a body provided With propelling mechanism, longitudinally grooved standards carried by said body, a frame slidably mounted in said grooves, supporting arms having a pivotal connection with said frame, abrasive rollers carried by said arms, and means for raising o1 lowering said frame.

4. A machine of the. character described comprising a body provided with propelling mechanisn'i, longitudinally grooved standards oppositely disposed within said body, a frame slidably mounted in the grooves of said standards, arms projecting from opposite sides of said fra me and having a pivotal connection therewith, abrasive rollers carried by the ends of said arms, and a screw carried by said body and provided with a hand wheel at one end, and having its other end in engagement with said frame, whereby said screw may be operated to raise or lower said frame.

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

ISIDORE B. BARRIRE. W'itnesses M. E. DUNN, ARTHUR J. SAVARD.

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