US1740244A - Bowling-alley-surfacing machine - Google Patents

Description

Dec. 17, 1929. D. G. JOHNSON ET AL. 1,740,244 I BOWLING ALLEY SURFACING MACHI NE Filed Oct. 24, 1928 3 Sheets-Sheet l INVENTOR ATTORNEY fly .1. 57

Dec. 17,1929; D GJOHNSO'Q ET A "1,740,244

Filed on. 2 1928 5 sheets-sheet 2 fi, gefakman Dec. 17, 1929.

D. G. JOHNSON ET AL BOWLING ALLEY SURFACING MACHINE 3 Sheets-Sheet Flled Oct- 2 1928 R km w mm R j 61 efdfiiasoiz E 6 n g L I w 5 a. x .J

WA. (a/ 562i I INVENTOR ATTORNEY Patented Dec. 17, 1929 UNITED STATES PATENT OFFICE DEXTER G. JOHNSON AND WEBB L. CAMPBELL, OF OKLAHOMA CITY, OKLAHOMA BOWLING-ALLEY-SURFACING MACHINE Application filed October 24, 1928.

This invention relates to a machine for surfacing bowling alleys and the like, the general object of the invention being to provide a frame carrying the surfacing mechanism and supported from shafts whichhave wheels at their ends for engaging tracks placed at the sides of the alley, with posts for supporting the tracks, the posts having foot portions for engaging the gutters of the alley,

with motor driven means for actuating the surfacing mechanism and for moving the device along the tracks whereby the machlne will surface the alley at one operation and as the carriage part travels from one end of the alley to the other, the device will surface the entire alley as it moves from one end thereof to the other.

Another object of the invention is to make the parts adjustable so that the surfacing mechanism can be adjusted to properly engage the surface of the alley, and adjusted a second time, if necessary, to perform a second operation on the surface of the alley.

A further object of the invention is to provide rack bars on the tracks and gears on one of the shafts which engage the rack bars to prevent the device slipping as it travels over hard places in the floor of the alley.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

Figure 1 is a plan View of the device.

Figure 2 is an end view thereof, with the alley in section.

Figure 3 is a section on line 3-3 of Figure 1.

Figure 4 is an elevation with parts in section.

Figure 5 is a section on line 55 of Figure 1.

Figure 6 is a section on line 6-6 of Fig- 4 ure 3.

Figure 7 is a perspective view of one of the shoes or foot blocks.

In these views, the numeral 1 indicates a plurality of posts, each having a shoe or foot block 2 fastened to its lower end, said shoe Serial No. 314,755.

being of semi-circular shape in cross section like so that it can be removed after the surfac- 7 ing operation has been completed. Braces 3 connect the posts with the shoes and some of these braces may be used for connecting the posts with portions of the alley. The upper ends of the posts are threaded, as at 4, and a cross bar 5 connects each post on one sidefof the alley with each post on the opposite side of the alley, it, of course, being understood that the posts on one side of the alley are arranged opposite to those on the other side. These cross pieces are each of channel shape in cross section, with openings in their flanges through which the posts pass and nuts 6 and spacers 7 hold the cross pieces in adjusted position on the posts- Hangers 8 depend from each cross piece adjacent each post and the hangers at one side of the alley have fastened thereto an angle-shaped track member 9 and a similar member is fastened to the hangers at the other side of the alley. As will be seen from Figures 2 and 3, these track members are arranged above the gutters. A rack 10 is connected with the horizontal part of; each track member a distance from its inner e ge.

A frame 11 is supported from a pair of shaft-s 12 through means of the hangers 13 which have their upper ends connected with the shafts and their lower ends are threaded to receive the nuts 14 which adjustably fasten said lower ends to the frame. shaft has a flanged wheel 15 at each end thereof, these wheels engaging the track portions 9 and one shaft also has connected therewith the gears 16 which engage the racks 10 so that as this shaft is turned, the carriage formed by the shafts and the frame 11 will move along the alley. This rack means also prevents the device from slipping as its surfacing mechanism engages hard spots in the floor of the alley.

The frame 11 carries a planer roll 17 and a drum cylinder 18 adjacent one end thereof and said frame carries at its other end the diskshaped polishers 19 which are fas- Each tened to the vertically arranged shafts 20 and said shafts are geared together by the gears 21.

A reciprocatory sander 22 is arranged intermediate the ends of the frame and is con nected to the cranks of a shaft 23 journaled in the frame by the connecting rods 24. A motor 25 has its shaft 26 connected by the gears 27 with the shaft 23 and worm gearing 28 connects the motor shaft 26 with one of the shafts 20 so that the polishers are also driven from this motor.

A motor 29 is carried by the frame 11 and has its shaft 30 connected by the worm gearing 31 with the shaft 12 which has the gears 16 attached thereto, so that this motor 29 acts to propel the carriage. The shaft 30 also carries a sprocket 32 over which passes a chain 33 which also passes over the sprockets 34 and 35 connected respectively with the sander roll 18 and the planer 17. Thus these parts are also actuated from the motor 29.

A diagonally arranged brush 36 is arranged between the planer and the sanding roller for brushing the floor as the device passes along. Caster wheels 37 are arranged at each end of the frame 11 and can be raised and lowered by the handles 38, these wheels being used when the device is being moved from one alley to the other or whenever the carriage is to rest on a floor surface and not on the track. Of course, when the carriage. is on the track, these wheels should be raised into inoperative position.

From the foregoing it will be seen that the posts can be easily and quickly set up in the gutters of an alley so as to support the track members above the gutters. Then the carriage is run on the track members and when the motors are started up, the carriage will be caused to travel along the alley and the surfacing mechanism carried thereby will 0 crate on the floor of the alley to give a perfect level finish to the floor. This machine will plane, sand and polish the alley at one operation, the brush acting to remove the cuttings left by the planer.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What we claim is:

1. A device of the class described comprising two rows of uprights, a track member supported by each row, a carriage having its body depending from the shafts thereof, wheels on the ends of the shafts engaging the track members, floor surfacing mechanism carried by the carriage, motor driven means for operating the said mechanism and for propelling the carriage on the track members,

means for adjusting the body of the carriage vertically in relation to its shafts, means for vertically adjusting the track members on the posts, a rack bar arranged on each track member and gears on one of the shafts of the carriage engaging the rack bars.

2. A device of the class described comprising two rows of posts, a shoe fastened to the lower end of each post, said shoe being shaped to fit in part of a gutter of a bowling alley,

hangers adjustably connected with the ends of the posts, track members carried by the hangers of each row of posts, a rack bar on each track member, a carriage including a body, a pair of shafts and hangers connecting the body with the shafts, means for adjustably connecting the latter hangers with the body, wheels carried by the shafts engaging the track members, gears on one shaft engaging the rack bars, floor surfacing mechanism carried by the body and motor driven means for actuating such mechanism and for rotating the shaft which carries the gears.

3. A device of the class described comprising two rows of posts, a shoe fastened to the lower end of each post, said shoe being shaped to fit in part of a gutter of a bowling alley, hangers adjustably connected with the ends of the posts, track members carried by the hangers of each row of posts, a rack bar on each track member, a carriage including a body, a pair of shafts and hangers connecting the body with the shafts, means for adjustably connecting the latter hangers with the body, wheels carried by the shafts engaging the track members, gears on one shaft engaging the rack bars, floor surfacing mechanism carried by the body, motor driven means for actuating such mechanism and for rotating the shaft which carries the gears, such mechanism comprising a planer arranged at one end of the body, a sand roller in rear of the planer, a brush between the planer and roller, polishing means at the other end of the body and a reciprocatory sanderintermediate the ends of the body.

In testimony whereof we affix our signatures.

DEXTER G. JOHNSON. WEBB L. CAMPBELL.

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