US629203A - Floor-surfacing machine. - Google Patents

Description

P atented my l8, I899.

No. 529,203. r H. mLnueHuu.

FLOUR SURFAGING MACHINE.

(Application filed. Mar. 21, 1898.;

m0 Modal.)

2 Sheets-Sheet I.

WITNESSES A rromvs rs.

THE nomus nuns no. PHDfO-LIYHQ. wAsnioo'mu. n, cy

No. 629,203. Patanta d July l8, I899.

H. mLouauLm.

FLOUR SURFAUNG MACHINE.

{Application filed Mar. 2!, 189B.

2 Sheets-Sheet 2.

WITNESSES UNITED STATES PATENT OFFICE.

HENRY MOLOUGHLIN," OF LEAVENWORTH, KANSAS.

FLOOR-SURFACI NG MACHINE.

' SPECIFICATION forming part'of Letters Patent No. 629,203, dated July 18, 1899.

Application filed a c 21, 1898.

To aZZ whom, it may concern..-

Be it known that I, HENRY MCLOUGHLIN, of Leavenworth, in the county of Leavenworth and .State of Kansas, have invented a new and Improved Floor-SurfacingMachine, of which the following is a full, clear, and exact description. O

This invention relates to 'means for planing or true-surfacing the tops of floors after the boards have beenfsecured in piace, and has for its object to provide a novel,simple, and very efficient machine for the purpose indicated,'which will be adapted for manual operation and that will enable an operator to quickly and perfectly surface large areas of flooring without excessive labor and then sandpaper the planed surface.

2 is a side elevation of the same in position 7 for use. Fig. 3 is a detached and enlarged partly-sectional side view taken substantially on the line 3 3 in'Fig. 1. Fig. 4 is a detached view of the shifting-arm for the wormbarrel forming part of the invention, the position of said arm on the machine being indicated by the arrow at in Fig. 1; and Fig. 5vis an enlarged transverse sectional elevation of p head 22, adapted to interlock with recesses e .in the adjacent end of the worm-barrel 21 a circular gage-block, which also serves as a sandpaper-holder, and is afeature of the i'm provement.

A preferably rectangular frame is provided for the support of the Working parts of the machine and at opposite sides of the frame gum-faced wheels 11 are located, said wheels being affixed on the projecting ends of transversely-disposed axles 12, journaled in boxes a, secured on the lower side rails of the frame, as shown in Figs. 1 and 2.

The relative positions of the parallel axles 12 near the front I and rearof the frame 10 and the. similar diameters of the wheels 11 provide a revoluble support for the machine and afford means for amovement of the same in any desired direction.

On lugs b, which project forwardly in the semi in. 874,608. (1% model.)

same vertical plane from top and bottom transverse bars of the frame 10, a swinging frame 13 is pivoted, preferably, on the ends of averticalshaft 14', held in said lugs,'whereby the frame 13 is adapted to be swung toward either side of the main frame 10.

On the top of the main frame 10 a drivingshaft'15 is journaled and projects at the rear end of the frame sufficiently to receive adrivjing spur-gear 16, which is secured thereon. A weighty balance-wheel 17 is affixed on therear extremity of the driving-shaft 15 near the spur-gear 16, and a crank-handle c is secured to the rear face of the balanceby the operator of the machine. On the upper part of the frame. 10 a counter-shaft'lS is journaled at one side of and in a plane parallel with the driving-shaft 15.

: A spur-gear 19 of smaller diameter than the spur-gear 16 is secured upon the rear end of the shaft 18, which projects beyond the frame 10, and this smaller spur-gear 19 is meshed with the spur-gear 16, as best shown in Fig. 1.

A worm gear 20 is secured upon a transverse shaft d, rotatably supported on the frame 10 below and at right angles with the driving shaft 15, and a worm-barrel 21,1oose1ymounted upon the driving-shaft l5,is in mesh with the Worm-gear 20, and at a suitable point on the driving-shaft 15 forward of the worm-barrel a clutch-head 22 is secured.

Projecting clutch-lugse are formed on the when the latter is moved toward the clutchhead, this construction of parts being clearly shown in Fig. 3.

On the shaft cl a sprocket-gear 23 is secured in 'the same vertical plane with a like gear 24 on the rear axle 12, and these sprocket-gears are connected by the sprocket-chain 24.

A shifting-arm 25 is provided to afford means for sliding the worm-barrel 21 toward or from the clutch-head 22, said shifting-arm consisting of a concaved box portion g, adapted to loosely fit upon the upper half'of the driving-shaft 15, a limb projecting from one side of the box, as clearly, shown in Figs. 1 and 4:-

On the rear end of the worm-barrel 21 a collar 71, projects circumferentially, and in the box 9 a mating recess h is formed at or near the forward end of,the box, so that an engagement of the collar with the recess will loosely interlock the shifting'arm with the worm-barrel 21.

A convex rack 26 is erected on the frame 10 at the sidethereof toward which the limb of the shifting-arm projects, and a lever 27, having a spring-latch device 28 thereon, is pivoted upon the rack, so that the lower end of the lever may be secured to the limb of the shifting-arm 25, which connection may be made in any suitable manner.

The upper edge of the rack 26 is suitably notched, as at i, for engagement therewith of the lower end of the dog m, forming a part of the latching device 28, as shown in Fig. 3. It will be seen that if the lever 27 is released from the rack 26 and rocked forwardly it will draw the shifting-arm and the box g thereon rearwardly, which will correspondingly slide the worm-barrel 21 away from the clutchhead22, so as to disconnect these parts, which adjustment is shown in Fig. 3. If, however, the operator desires to progressively move the frame 10 by the rotary movement of the driving-shaft 15, it is only necessary to draw the lever 27 rearwardly, which will cause the worm-barrel 21 to interlock with the clutchhead 22 and so secure the worm-barrel to the driving-shaft as to adapt said worm-barrel to slowly rotate the meshed worm-gear 20 when the balance-wheel 17 is revolved by the operator.

The rotation of the shaft d, produced when the worm-gear 20 is revolved, transmits rotary motion to the rear-axle 12 through the sprocket-gears 23 24 and chain 24. A bevelgear 28 is secured on the forward end of the counter-shaft 18 and is meshed with the bevelpinion 29, that is affixed upon the upper end of the'vertical shaft 30, the latter being revolubly supported by suitable boxes on the main frame 10, as clearly shown in Fig. 2.

On the vertical shaft 30, below the bevelpinion 29, a spur-gear 31 of considerable diameter is secured and is meshed with a spurgear 32, held to rotate on the pivot-shaft 14 by means of the collars a, secured on said pivot-shaft by suitable set-screws.

At the front of the swinging frame 13 a ver tical cutter-spindle 33 is held to revolve by its journaled engagement with boxes 0 or the like fixed on the swinging frame, as indicated in Figs. 1 and 2.

At the lower extremity of the spindle a gage-block 34 is secured, and immediately above the gage-block a cutter-head 35 is held on the spindle by any suitable means. The

cutter-head is preferably in the form of a flat circular plate having spaced vertical perforations formed near its edge for the reception of the shanks of the cutters p, set-screws being provided which may be screwed toward the shanks when the latter are in place, so that the cutters may be properly adjusted toward or from a floor-surface, as may be desired.

Any suitable number of the cutters 1) may be provided of any preferred shape at their cutting edges, and other means may be utilized for adjustably securing said knives on the cutter-head, if this be found expedient. Above the cutterhead 35 an arm 36 or equivalent device is secured on the spindle 33 to prevent the cutters p from having contact with the base-board B when the machine is operating on the floor A. 4

If an arm 36 is employed as a guard, it should havea roller 4" rotatably secured on its outer end, and the arm should be of such a length as will project the roller a short distance beyond the cutter-head 35, said roller being adapted to contact with the base-board B when the cutter-head is rotated rapidly, and in this way prevent too near an approach of the knives p to the base-board.

Asprocket-gear 37 is secured on the spindle 33 at a suitable point, and in the same horizontal plane with said gear a larger sprocketgear 38 is affixed upon the upper face of the spur-gear 32, the latter being loosely held on the shaft 14, as before explained.

The gears 37 38 are connected by the sprocket-chain 39, so as to permit the spindle 33 to be revolubly actuated by the driving-shaft 15, and it will be seen that the geared connectionsbetween the drivingshaft and cutter-spindle will cause a rapid rotation of the latter when the balance-wheel 17 is manually revolved.

The gage-block 34 is in the form of a cir-,

Any convenient means may be provided for swinging the-frame 13 toward either side of the main frame 10 and for holding it in position when the cutter-head is to be operated near the base-board of a room.

In operation it will be seen that the device may be moved progressively in all directions and at a proper speed, while the cutter-head 35 is simultaneously rotated, so as to cause its knives p to engage with projections on the flooring and cut them away, thus rendering the floor-surface level,the gage-block 34, which is set so as to have contact with the trued portion of the floor, serving to gage the depth of cut of the knives 13 until the machine has been moved over the entire area of the flooring it is desired to render level. If found expedient, the cutter-knives may be exchanged for others adapted to out very smoothly, and these cutters should be set so as to cut thin shavings, the machine on its passage again over the flooring completing the planing operation by a rapid revolution of the cutter-head. In case the flooring is difficult to plane on account'of knots or knurls in the boards and it'is found necessary to Work very slowly at different points the operator can disconnect the gearing that rotates the rear axle 12 by a movement of the lever 27, so as to detach the worm-barrel 21 from the clutch-head 22. The machine can now be pushed gradually while the cutters are being rotated at full speed'and the obstructions, such as knots, leveled and the floor rendered smooth. After the floor has been planed sandpaper or crocus -cl0th may be clamped upon the lower surface of the gagebloek 34 and the machine passed over the floor, so as to apply the sandpaper or crocuscloth to the flooring by the rapid rotation of said gage-block 34, which will complete the leveling and smoothing ope-ration.

Having thus described my invention, 1"

cutting apparatus mounted on the swinging a frame, and gearing for driving the cutting apparatus from the primary-movement shaft.

HENRY MOLOUGHLIN.

Witnesses:

ALFRED GALLAHAN, ALBERT L. KUNZ.

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