US1329551A - Buffing-machine - Google Patents

Description

L. scuuuE. BUFFING MACHINE, APPLICATION FILED JULY 2% I918.

Patented Feb. 3,1920

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BUFFING MACHINE. APPLICATION FILED- JULY 24.|91 8,

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' Buifin -Machines,

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To all whom it concern." I

Be it knownthat; I, LOUIS 'SOHUL'I'E, of

Pittsburgh, in thecounty of Allegheny and inthe Stateof Pennsylvania, have invented a certain new and useful. Improvement in and do'he'r'eby declare that scription thereof.

'My invention has for an object to provide a machine for performing buffing or similar operations in which the work is so supported as to secure uniform. pressure of the same against the bufi'er, and in which vibrations of'the machine gay ill be taken up or. absorbed without detriment tothe same.

"Another object of. my invention is to pro-,

videlamachine which can be easily set up on a floor although the floor be uneven, and

in which a proper adjustment of the work supporting table may be readily made.

Another objectof the invention is. to provide' a worktable driving means which will operate without special adjustments in all positions of the table.

Further-objects of the invention W111 be in partobvious and in part specifically pointed.

out in the descriptionhereinafter contained, in which I have shown one embodiment of my invention, which embodiment I however is to be regarded merely as illustrative of its principle. r

In the drawings: Figure 1 is a side View of a machine made 1 according to my invention;

Fig. 2 is a plan view of the portion of the machine appearingat the rightof Fig.1;

Fig. 3 is a plan view of the portion of the machine appearing at the left of Fig. 1;

Fig. 4 is a section taken on line 44 of Fig.1, looking in the direction of the arrq s. I v

n machines of the type disclosed it has been the practice to provide a large base or frame carrying the different elements of the machine, the Work holdingtable being slidingly carried by such frame upon ways or guides and certain adjustments being pro-' vided whereby the distance between the work holding table and the bufiing roller could be varied as desired. These machines have'been objectionable in that the extensive base required to accommodate the table was often difficult to set up properly upon floors at all uneven. and furthermore, the high speed of the bufling roller tended'to set up vibrations:

-5 and 6 so that the same may be positioned, at any desired height and inclination. In

specification-of Iletters Patent. Patented Feb. 3, 1920. Application an my 24, ms. Serial No. 24am.

throughout the whole frame work which ing'respectively between the pedestals 1 and 3 and 2 and 4:, are a'pair of resilient shafts .5 and 6 which form gpides upon which the. Work table 9; may be reciprocated.

A bufiing wheel 10- carried by a shaft 11, is positioned over the work holding table 9,

'by means of a pair of supporting posts 11 and 12, having bearings 13 and 14: for receiving the shaft 11. A pulley l5 onthe shaft type ofbufiing mechzmis'm used is not essen# tial tomy invention, and accordingly will not be' described in greater detail.

Ii /order to position the work table properly with respect to the buffing wheel 10, I

provide an a u'stment for each of the shafts the present embodiment, the upper portion of each of the pedestals 1 to 4' ismade hollow and a screw 16 is mounted therein. A collar 17 surrounds each of the screws 16; and each collar is pivotally connected as at 18 to the I adjacent shaft end. Suitable devices are provided to rotate the screws 16 to place the shafts 5 and 6 in any desired positiomsuch as the hand wheels 18 on the pedestals 1 and I '2 and the worm gears 19 and worms 20. carried-by shaft 21,- on the pedestals 3 and 4. In this Way it will be seen that the supporting parts for the work table .9 may be set up I in' any desired. location, no matter how uneven may be the elevation of the points upon which the pedestals 1,2, 3 and 4c are placed, and the hand wheels 18 or shaft'21 turned to adjust the work table 9' to the proper distance from the buliing wheel 10. It is not I requisite in any way that the tablp 9 be maintained horizontal, as has generally been the'case, since adjustment ,may be readily 11 is used to drive the same. The particular made to permit table 9 to'operate in an in- I clined plane, if desired or necessitated.

Since the table 9 is supported upon resilient shafts -5 and 6 any vibration ofthe parts of the machine are absorbellfby such I table 9 so as to interfere with the proper shafts rather, than being transmitted to the I operates. evenly throughout the entire surface of the work.

In order to drive certain parts of the machine I have shown a shaft 22, journaled in brackets 23 and 2a on the pedestals 1 and 2, and carrying a pulley 25. It is desirable to move the roller 10 laterally over the Work, and to accomplish this a shaft 26 is driven from the shaft 22 through bevel gears 27 and 28, and such shaft 26 carries at its inner end a crank 27 A link 28 is connected to the'crank 27 at one end, and its other end is secured to a rocker' arm 29 which engages a collar 30 on the end of the shaft 11, thus moving the roller 10 laterally during each revolution of the shaft 26.

In prior machines of the types hereinafter mentioned, the Work table has been driven by devices. such as a rack and gear, which require a corresponding adjustment whenever the level of the work table is changechso that the proper adjustment of the machine was very cumbersome. I have overcome this difliculty by providing-a link operating mechanism for the table 9 which needs no special adjustment when table 9 is raised or lowered. In the form illustrated a pair of connecting rods 31 are pivoted to the table 9 at one end, and their other ends are connected to cranks 32 mounted upon a shaft .33 which latter is carried in bearings 34 upon the pedestals 1 and 2. A wheel 35 is also carried by such shaft 33 so that, as this wheel is rotated the table 9 will hereciprocated under the bufling roller 10. If desired Wheel 35 may be. in the form of a ear which engages a pinion 36 on the driv- 111g shaft 22 so as to make the feed of table 9 positive. It is obvious that raising or lowering the table 9 by adjustment of the shafts 5 and 6 will in no way interfere with the operating links for the table, since they may readily assume any angular position corresponding tothe elevation of the table 9.

While I have described a specific form of the invention, itis obvious that many changes mav be made without departing from the principle thereof as definedjinthe following claims.

I claim 1. A butting machine having guides adapted to receive a work holding table, indeQ pendent supports respectively for the two,

ends of said guides, and means for adjustingthe position of the guides, in each of said supports.

2. A buffing machine having guides adapted to receive a work holding table, independent. supporting pedestals. for each end of each of said guides, and means on each of said pedestals for adiusting the position of the corresponding guide.

3. A bufling machine having guides adapted to receive a work holding table, inde-- pendent supporting pedestals for each end.

of each of said guides, an adjusting screw being provided on each of said pedestals and engaging a portion of the corresponding guide to maintain the same at the desired elevation.

- 4:. Abufling machine having a pair of spring shafts adapted to receive a Work holding table, independent supporting pedestals for each end of each of said shafts, anadjusti-ng screw being provided on each of said pedestals, each end of said shafts having a collar pivoted thereto and engag ingthe corresponding screw.

Ina bufling-ma'chine,a pluralitv of independent pedestals, a work holding table, supporting members for said table each ex tending between and devices carried by said pedestals for varying the elevation of said members, the devices at the two ends of'said members being independently operable.

6. A- buifing machine having a .bufling roller, a work holding table, and a resilient support for said table, whereby the work maybe held against the roller with uniform pressure, and vibrations'of the machine ab sorbed." I I v 7. A bufling machine having a buffing roller, fawork holding table, and a pair of spring shafts receiving saidtabl'e, and means for moving said table along said shafts,-

a pair of said pedestals, I

whereby the work maybe held against the".

-"= roller with uniform pressure and LOUIS soHn r f

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