US1620459A - Surfacing machine - Google Patents

Description

March 8" lgzjf L. H. GRAY l AsLgFAclNG MACHINE .Filed Fen-2S, 1925 2 sheets-sheet 1 10 l v BY ATTORNEY..

' 1927. March 8 l.; H..GRAY

SURFACING MACHINE 2 Sheets-Sheet 2 Filed uml 2s, 1925 I N VEN TOR.

ATTORNEY.

Patented Mar. 8, 19.27.

UNITED ySTATES f i. l "511,620,459"

PATENT OFFICE;

Lasagna n. dans', or .roamenrsnnsnvamasUnFAcING MACHINE.

. -Application led February 28, 1925. Serial No. 12,406.

This invention relates to surfacing ma chines for wood material and the like, and has for one of its objects to provide a slmply constructed support '-for the material While being operated on by the surfacing machine. V

With these and other objects in view, the invention consists in certain novel features of construction as hereinafter shown and described, and then specifically pointed out in the claim, and in 'the drawings illustrative of the preferred embodiment ofthe invention.

Figure 1 is a plan view, partly in section.

Figure 2 is a side elevation.

Figure 3 is a side elevation of the supporting frame and the bearing rollers.

Figure 4 is an end elevation of the upper portion of the supporting frame and the l .bearing rollers.`

Figure 5 'is an enlarged sectional detail on the line 5-5 of Figure 2.

The improved device comprises a supporting frame including spaced longitudi-l nal upper side members or rails and ysu sorting standards or posts 10 ounted for rotation upon the frame members 10, are a plurality of spaced bearing rollers 14, preferably of metal and holf low as indicated in Figure 1,to decrease the weight. l

- The frame members are designed to support a surfacing apparatus of any suitable construction so long as itjincludes a surfacing'drum, or the' like; and for the pury. pose of illustration a conventional surfac- Yingl apparatus is shownfwhich includes a shell or casing 11. Attached-to the frame members 10 near the end farthest from the rollers 14 is a bracket device 12 arranged to )support one end of, the shell 11.

' an upstanding stud 56.

yin placeA bi1 clamped to the frame members v10, t'o etherwith theshell 11 associated therewit it operates.

bear upon the frame- Extendingv through the housing 11 is a shaft 15, and connected to the shaft within the housing is an arm 16. v

Mounted on the housing at v17 is a standard 18, and pivoted at 19 to the standard is a shipper lever 20, and connecting the vshipper lev'er 2O and the arm 16 is a rod 2l. The shipper lever 20 is provided with a pawl device indicated at 22 and coacting with a notched segment 23 on the standard 18 to hold the shipper` lever 20, rod 21 and arm 16 in adjusted position. VPivoted at 24-25 to the side faces of the housing l1 are leven arms 26 and 27 the latterl supporting a shaft 28 on which a surfacing drum 29 is mounted, the latter covered with 'the usual abrading material, such as sand paper or the like. y

Extensions 30 and 31 are directed, forwardly from the arms 26 andv 27 and operative as lifting handles to enable the sur- 1 facing rollen to be manually adjusted, if re uired.

irected rearwardlycfrom the arms 26 and 27 are extensions 32 and 33, and supported on the shaft 15 externally of the l housing 11 are lever arms 3,4 and 3 5.

Rods 36 and 37 are pivoted at one end respectively to the lever arms 'as shown at 38 and 39, and extend slidablyrthrough the free ends of the members32 and 33, and are provided with holding nuts 40andy 41 externally of the latter and with springs 42 and`43 between the members 34-35 and By this arrangement, the surfacin drum is 'yleldably supported, and can be Aa justed to control the depth of action of the\drum, or elevate it free of thematerial on which Any means may be employed to operate the surfacing drum, `for instance, an electric motorillustrated conventionally at 46, and

with chain wheels 47 and 48 mounted respective'ly on the motor shaft 49 and the drum shaft 28, and 'carrying an endless chain 50. f Y y Means are preferably provided. for inducing artificial air currents through the housing 11, for instance, a fan device indicated at 51 and havin an elongated wind trunk 52 connected at its discharge end a53 into a suitable receptacle represented conventionall at 54, i

e improved'- deviee is designed more particularly for surfacing lumberofvarious sizes, suchas Hooring, window and door casing, baseboards,'sta1r rlsers and treads, and

the like, the material to`be treated being forced between the rollers 14 and the drum 2 9 as the latter is rapidly rotated in the direction of thearrow, the fine material re leased by the drum being drawn into the housing by the suction of the fan 'and carried through the Wind `trunk 52 and -into the receptacle 54. A

While a conventional surfacing apparatus is shown,A for illustration, the supportingI frame and its rollers may be employed with any construction of surfacing apparatus, for

instance, the usual construction of floor surfacing machines.

The improved device 1s simple in construc tion, can be of any required size or-capacity, and of .any suitable material, er combination of materials. The preferred embodiment of the invention is'` disclosed in the drawings and set forth inthe specification, but it `will be the principle of the invention or sacrificing anlyI of its advantages.

aving thus described the invention what is claimed as new is:

The combination with a surfacin element having a housingr and carrier Wheels, of a support comprising a frame having legs, brackets on the to A of ysaid frame, clamps on a pair of said hrackets and adapted to embrace the treads of the carrier Wheels to fasten the same to the top of said frame, a bearing plate on the other bracket for supporting the rear of said surfacing element and a series of idler rollers positioned on said frame to co-act with the surfacing element.

In testimony whereof, I alx my signature hereto.

LESTERH. GRAY.

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