US1544400A - Floor-sanding machine - Google Patents

Description

June 30, 1925. 1,544,400

A T. G; HOLT FLOOR SANDING MACHINE Filed June 24, 1924 2 Sheets-Sheet 1 June 30, 1925. T. G. HOLT FLOOR SANDING MACHINE Filed June 24, 1924 2 Sheets-Sheet Patented June 30, 1925.

UNITED STATES THOMAS G. HOLT, or KANSAS c ITY," MISSOURI.

FLOOR-SANDING MACHINE.

Application filed June 24,

To all whom it may concern:

Be it known that I, THOMAS G. HOLT, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Floor-Sanding Machines, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to improvements in floor sanding machines and more particularly to a device for sanding the edges of the floors next to the base board;

In the ordinary construction of floor sand-; ing devices such as employed for polishing hardwood floors and the like, the construction thereof is such that itis impossible to sandpaper the floor by the use of the device at that part of the floor lying next to the base molding, the structure of the roller and the location thereof in the machine preventing it being moved nearer to the base molding than about four inches. This space must accordingly be hand scraped or sanded, causing the operation to be very expensive and in cases where scraping is resorted to, the band of flooring about the edge of the room when completed is of a different color from the central portion.

An important object of this invention accordingly becomes to provide a device wh ch may be employed for sanding this remaining strip of flooring sufficiently close to the base molding so that any remaining will be covered by the usual ogee strip placed at the bottom of the base molding.

A further object of the invention is to provide a device of this character which is readily reversible so that it may be employed for sanding either the right orleft hand corners of a room.

A still further object of the invention is to provide a device of this character which is simple in its construction and arrangement, readily adjustable, durable in service and a general improvement in the art.

These and other objects I attain by the construction and arrangement shown in the accompanying drawings wherein for the purpose of illustration is shown a preferred embodiment of my invention and wherein like reference characters designate like parts throughout.

In the drawings Figure 1 is a side elevation of a floor sanding machine constructed in accordance 1924. Serial 1701722412.

with my invention showing the machinedurin'gthe' operation of shifting the sanding wheel ,or roll from one side of the machine to the other, the final position of the'vmar.

chine being shown in dotted lines;

Figure 2 is a side elevation of the opposite 7 motor is journaled, ares mounted bushings 14, the hub portions of the housing being preferably turned down to a uniform diameter. for the reception of these bushings.

The'peripheriesof the bushings 14: have formedwtherein' grooves 15 which receive,

tongues, 16 formed upon the coacting faces of bearings 17 formed upon the inner ends of connecting rods 18. The connecting rods 18 are adjustable as to length, as by means of bolt and slot engagement, such as indicated at 19, and are provided at their forward ends with bearings 20 which bearings are connected by a housing 21. A shaft 22 is rotatably mounted in these bearings and extends therethrough and through the housing 21, the ends of the shaft projecting beyond the housing and one end of the shaft being connected with the shaft 13 of the motor by sprocket and chain or similar engagement, as indicated at 23. The bearings 20 and 1.7 of the connecting rods may be lubricated in any desired manner, the former being preferably provided with hard grease cups indicated at 24, and the latter having formed therein oil holes 25 by means of which oil may be introduced to the grooves 15.

Mounted upon a bushing 26 carried by one end of the shaft 22 is a padded wheel 27, and upon the opposite end of the shaft 22 is secured for rotation with the shaft, a sanding wheel 28 having any suitable means, as at 29, whereby the sandpaper may be secured thereto. Secured to the forward end of the adjacent connecting rod 18 is a strap iron frame or guard 30 surrounding the sanding roller and maintaining the same at all times in spaced relation to the base board 2 enough to the base hoard leave only a strip unsanded which may be covered by l the ogee molding above mentioned. An op crating handle 31" is provided secured at its lower end, as by mean's'of straps '32, to the likewise be obvious that the construction of housing 21 and having at its P9 11 end cross bar to be engaged by the hands -of the operator. Adjacent this cross barvthe op erating handle is provided with a switch'33 controlling "the motor.-

erator having started the motor, moves the 7 'machine with the sanding: roller and guard dium of the handle -31, the free ends offthe connecting rods 18, these rods rotating about I the bushings carried by the hub portions of the motor housing and permittin the entire machine to 'befreversed. With t e machine so reversed, it will be obvious that the left hand corner may besanded by the use of the roller with the same facilitythat is met with in sanding the right hand corner.

g --It will be obvious thatby the use of a II1&-'

In the use of my device in sanding, the op chinezof this construction the necessity for scraping the unsanded' edges is eliminated as iven operation is accordingly lessened and a 'etter' finish appliedfto the floor.' It will the machine being very simple, the device will be durableinservice and capable of continued use withoutthe necessity of replacing delicate parts. I accordingly do .not lim-itmyselfto the specific structure hereinbefore set forth' lekcept as hereinafter claimed/ I claim: 1 In afloor'. sanding device, a wheel sup ported :motor embodying the usual housing and shaft, connecting rods pivotally ensgagedwith themotor housing at opposite f a 50 sides thereof and "rotatable upon the housing with the shaft as a center, a shaft rotatably .and thatthe amount ofwork accompanying I mounted'in the free ends of' sai'd connecting rods, a sprocket and chain connection between theiemotor'shaft andthelast named shaftfsaid connecting rods being adjustable as -to length,an operating handlerotatably engaged with the last named shaft, and a I,

sanding wheel carri d by opn'-pndg f the last i named shaft.

In testimony whereof hereunto aflix my. j

' i TH MAS -L L signature.

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