US1006529A - Journal-box. - Google Patents

Description

R. S. BROWN.

JOURNAL BOX.

APPLICATION FILED AUG. 3, 1910.

1,006,529. Patented 0013.24, 1911.

2 SHEETS-SHEET 1.

Witnesses: 1720672601:

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UNITED STATES PATENT OFFICE. i

ROBERT S. BROWN, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO NEW BRITAIN MACHINE COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CON- NECTICUT.

JOURNAL-BOX.

Specification of Letters Patent.

Patented Oct. 24, 1911.

7 '0 all whom it may concern:

Be it known that I, ROBERT S. BROWN, a citizen of the United States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in J ourn'al- Boxes, of which the following is a specification.

This invention relates to journal boxes and a journal box involving my invention can be employed with advantage in connection with various kinds of machines, such for instance as buffing machines. Said ournal box includes certain features of novelty and advantage which will be set forth at length in the following description wherein I will outline in detail that form of em bodiment of the invention which I have selected for illustration in the drawings accompanying and forming part of the present specification, this disclosure being provided to enable those skilled in the art to practice the invention. I may depart from such disclosure in several respects within the scope of the invention included in the claims following said description.

Referring to the drawings: Figure 1 is a front elevation of a bufling machine including my invention. Fig. 2 is a vertical section of the same. Fig. 3 is a section on the line 33 of Fig. 2 and on an enlarged scale, and, Fig. 4 is a detail hereinafter more particularly described.

Like characters refer to like parts throughout the several figures.

The different parts of the machine are supported by a suitable frame that shown being in the form of a table or bench and. including the duplicate side legs or uprights 2 which are usually, although not necessarily, made in the form of castings, and a top 3 upon which the buffing heads hereinafter described are mounted. While I show two bufling heads, it is, of course, evident that there might be cases where I should employ but one. The top is usually made of wood, and it rests on stringers 4 of which there are four illustrated, the stringers fitting slots in the complemental legs or uprights 2, and as shown best in Fig. 2 being arranged in pairs, a buffing head, each denoted in a general way by 5, being located directly over each pair of stringers. These stringers materially stiffen the bench, and

therefore there is provided an unusually rigid support for the bufling heads which are connected to the table top and therefore to the stringers, the heads being united di rectly with the outer stringers as shown in Fig. 2.

A detailed description of one buffing head and its associated parts will apply to the other, the same being in the present case of similar construction.

The buffing head 5 involves in its organization a chambered or hollow body 6 which is ordinarily rigidly connected with the bench or table top 3, and a cap 7 hinged for example, as at 8 to the upper rear side of said relatively stationary body 6, the cap or hood 7 when closed as indicated on the left in Fig. 2 being adapted to cover the upper open side of the hollow body 6. The hood or cap 7 is provided at its sides with the depending flanges or walls 9 which are con tiguous to the outer sides of the body 6, and it will be observed that the front or outer side of said body 6 is provided with a curved portion 10 to which on the outer side thereof the pendent flange or apron 11 of the hood or cover 7 is adjacent. There is preferably no tight or close contact between the flange or apron 11 and curved portion 10 and the flanges or walls 9 and the body 6, but rather a free fit so as not to prevent the free raising and lowering of the hood or cover 7. The pendent flanges, however, prevent effectually the entrance of flying particles into the casing-like head 5, and at all times overlap the body 6. The curves of the pendent apron or flange 11 and the portion 10 are struck from the center of motion of the hood 7.

The hood 7 presents a convenient support for the shaft 12 which carries a bufling or grinding wheel, although this wheel is not shown, the shaft extending oppositely from the hood and rigidly carrying within said hood a driven pulley 13 adapted to be connected by a belt as 14: with the driving pulley 16 rigid on the shaft 17, the mounting of which will be hereinafter described. It will be seen that the top 3 has an opening for the passage of said belt 14 and that the hollow body 6 covers such opening.

The hood 7 on the left in Fig. 2 is shown in its elevated position the corresponding belt 14 being under tension, so that motion can be transmitted from the pulley 16 to the pulley 13 by way of said belt. To stop the pulley 13 and therefore the grinding or bufiing wheel shaft 12 the hood 7 is lowered as shown on the right in Fig. 2 thereby putting the belt 14 out of driving relation with the pulley 16 and stopping the drive of the pulley 13. A friction brake 18 supported within and by the body 6 may be provided and the periphery of the pulley 13 when the hood is lowered is caused to engage the active portion of said brake 18, the belt 14 being at this time slack or loose, to instantly stop the rotation of said pulley. When the hood 7 on the right is lifted the cooperating belt will be tightened and the pulley 13 will on the initial upward movement of the hood be carried out of engagement with the brake 18 whereby the said pulley 13 on the right can be turned in an obvious manner.

As a convenient and advantageous means for locking the hood 7 in its operative or belt tightening relation a toggle is provided, said toggle comprising the members 18 and 19, the lower toggle member or link 18 being pivotally connected with the base of the body 6 and being adjustably and pivotally connected with the upper toggle member 19 between the ends of the latter. The toggle member 19 is pivoted at its inner end between the ears 20 extending forwardly from the hood 7 and overhung by the projecting portion 21 which is a protection for the pivot between the member 19 and the hood The toggle link 18 is connected to the companion toggle member 19 within a chamber formed in said member 19 which acts as a barrier against the entrance of dust into the pivotal connection between the two links. The outer portion of the toggle member 19 serves conveniently as a manipulating handle and said toggle member 19 is shown in substantially a horizontal position on the right in Fig. 2. Byswinging the toggle member 19 downward the toggle is straightened, and this action causes the elevation of the hood 7 and it is subsequently locked in its belt tightening position, this relation being shown on the left in said Fig.2. The hood 7 and body 6 are externally smooth or free from projections and pockets by virtue of which the same can be easily cleaned or wiped ofi witha rag or otherwise to reclaim any of the dust of the precious metals which during buffing may have lodged on said hoodor body. 7

The shaft 12 is rotatively supported by normally relatively stationary boxes 25 which fit preferably closely in openings in the sides of the hood7, so that said boxes can be effectively utilized as seals to prevent dust entering the casing composedof the body 6 and hood 7 by way of the shaft openings in said hood, andI have shown the' boxes 25 as cylindrical to fit correspondingly shaped bored openings in the sides 9, this being the simplest way of forming the parts for ready assemblage. Each box 25 con slsts of superimposed sections connected separably or rigidly by screws as 26. The boxes 25 contain lubricant, and they receive lubricant distributing bearing members 27 which are fully described and claimed in my contemporaneously pending application, Serial No. 503,096, filed June 19, 1909, and the bearing members 27 consist of superposed sections, the lower of which in each case is supported for universal rocking mot-ion by the lower sect-ionof the companion box 25. The boxes 25 are adjustable longitudinally of the shaft 12 and they can be held in their adjusted positions by set screws 28 tapped through the under portion of the hood 7 and fitting normally against the bottoms of sockets 29 in the lower members of the respective boxes 25, said sockets being shown as somewhat elongated to provide for the adjustment in question. To adjust a box 25 it is only necessary to slightly back out the cooperating screws 28 when the adjustment can be secured and when it is efiected the screw will be set up, and its upper end will bind against the bottom of the socket 29.

The upper sections of the bearing members 27 are adjusted with the boxes 25 by means of screws 30 fitting seats in said upper sections and held in position by transversely disposed screws 31. Access may be had to the screws 30 by removing the screws 32 of somewhat large diameter, tapped into the hood 7, one of said screws 32 being shown as removed in Fig. 3.

The pulleys 13 are driven by the respective shafts 17 as already set forth, and these shafts are carried by yokes 33 having screw shanks 34 screwed into the cross bars of the side legs or standards 2, there being, as will be understood, two of such'yokes for each shaft. In the yokes are the boxes 35 which directly support the respective shaft-s and which are held in place by trunnion screws 36 carried by the branches of the respective yokes and fitting seats in the upper members of said boxes 35, and owing to this mounting said upper members directly resist the pull of the belts when the machine is in action. The machine is self-contained in that the driving shafts are carried on the frame work thereof. The looseness in the respective belts can be easily'taken up owing to the fact that the links 18 are adjustably connected with the companion links 19 as previously set forth, the links 18 having perforations 18" to interchangeably receive the pivots 19'.

What I claim is:

1. In a buffing machine, a hollow body, a hood for said body, a rotary shaft supported by the hood, a driving pulley located below said shaft, a driven pulley on said shaft, said pulleys being adapted to receive a belt, and said hood being movably mounted to assume two positions, in one of which it serves to maintain the belt between the pulleys in a lax position, and in the other of which it serves to tighten said belt, and means for closing in the hollow body in both posit-ions of the hood.

2. In a bufling machine, a table, a hollow body supported by said table, a hood hinged to said body, a rotary shaft supported by said hood, a driving pulley located below said shaft, a driven pulley on said shaft, the table having an opening for the passage of a belt connecting the two pulleys, said hood having two positions, in one of which it rests against said hollow body to maintain the belt between the pulleys in a lax position, and in the other of which it serves to tighten said belt, said hood having depend ing flanges on its sides to overlie said body and also having another flange to overlie the body on the part thereof opposite the hinge, the several flanges serving to close in the body in both positions of the hood.

3. In a bufiing machine, a table, a hollow head supported by the table, a hood hinged to said body, a shaft carried by said head, a pulley mounted on the shaft, a driving pulley located below the other pulley, a belt connecting the two pulleys, the table having an opening for the passage of said belt, said hood having two positions in one of which it rests against the hollow body to maintain said belt in a lax condition and in the other of which it is elevated to maintain the belt tight and in driving condition, the hood having a pendent flange portion to overlie said hollow body in both positions of the hood, the first mentioned pulley being Wholly closed in jointly by the hollow body and hood in both positions of said hood, and

means for positively locking the hood in its elevated position.

4. In a buffing machine, a head comprising a hollow body and a hood hinged to the body, said hood having two positions and also having pendent side flanges overlying said hollow body and also having a pendent curved flange opposite the hinge and concentric with the axis of motion of the hood, a part of the surface of the body being contiguous to said curved flange, and said contiguous surface being also concentric with said axis.

5. In a bufling machine, a hollow body, a hood for said body, the hood being movably mounted to assume two positions and having pendent flanges to overlie the hollow body in the respective positions of said hood, a shaft rotatively supported by opposite flanges of the hood, and a pulley supported by the shaft, in the head presented jointly by said body and hood.

6. In a bufling machine, a hollow body, a hood for said hollow body, having opposite openings, bearing boxes fitted in and sealing said openings, a rotative shaft supported by said bearing boxes, a driven pulley carried by the shaft, inside the hood, a driving pulley located below and adapted to be belted to the driven pulley, said hood be ing movably mounted to assume two positions in one of which it maintains the belt in a lax condition, and in the other of which it tightens said belt, and means for closing in the head in both positions of the hood.

In testimony whereof I aflix my signature in presence of two witnesses.

ROBERT S. BROIVN.

Witnesses HEATH SUTHERLAND, LEAH L. MAnKEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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