US1854484A - Sheet glass surfacing apparatus - Google Patents

Description

April 19, 1932.-

l. ov. PEDERSEN SHEET GLASS SURFACING APPARATUS Filed Nov. 4,

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April 19, 1932. o, EDERSEN 1,854,484

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SHEET GLASS SURFACING APPARATUS Filed Nov. 4, 1926 5 Sheets-Sheet 3 Mig' FV l? S) S14/vento@ Ing xfa/d O. Fede/15m attozwuj Patented Apr. 19, 1932 UNrrEn stares rai-rent crains;

INGVALD O. PEDERSEN, OF :PIT'.LSBUE'G'IIJ PENNSYLVANIA, ASSIGNOR TO LIBBEY- OWENS-FORD GLASS COMPANY, F TOLEDO, OHIO, A CORPORATION 0F OHIO SHEET GLASS SURFAGING APPARATUS Application filed November 4, 1926. Serial No. 146,117.

This invention relates to new and useful improvements in sheet glass surfacing apparatus.

An important object of the invention is to .g provide, in sheet glass surfacing apparatus,

novel and simplified means for coupling together a plurality of trucks or tables adapted to support and carry a series of sheets to be surfaced beneath a plurality of surfacing -320 units.

Another object of the invention is to provide, in sheet glass surfacing apparatus, centering means for alining the tables prior to the coupling thereof.

A further object of the invention is to provide, in sheet glass surfacing apparatusl of the above character, centering and coupling means whereby the adjacent ends of adjoining tables will snugly abut and be held in contact with one another.

A still further object of the invention is to provide, in sheet glass surfacing apparatus of the above character, means for automatically uncoupling the tables upon movement theret of in a predetermined direction.

Still another and important object of the invention is to provide, in sheet glass surfacing apparatus of the above character, means for driving and guiding the tables to prevent :lo lateral vibrating Vmovement thereof when the glass sheets are brought into engagement with the surfacing units. v

Other objects and advantages of the invention will become more apparent during the course of the following description.

In the drawings wherein like numerals are employed to designate like parts throughout the same,

Fig. 1 is an elevation of a plurality of tables or trucks having incorporated therewith iinproved centering, coupling and guiding means constructed in accordance with the present invention,

Fig. 2 is an enlarged elevation showing the adjacent ends of two adjoining tables,

Fig. 8 is an end view of one of the tables,

Fig. 41 is a bottom plan thereof,

Fig. 5 is an enlarged vertical longitudinal sectional view of the adjacent ends of two gather. rails 15 are adapted to support the trucks adjoining tables showing the improved coupling means associated therewith,

VFig. 6 is a top plan view of the coupling means removed from the tables,

Fig. 7 is a detail sectional view of the centering means, and

Fig. 8 is a View similar to Fig. 2, but showing a slightly modified form of the present invention.

Referring now more in detail to the accompanying drawings, and especially to Figs. 1 to 6, inclusive, there is disclosed a plurality of Vtrucks or tables 10 having securedto the upper surfaces thereof by means of plaster of Paris or the like 11, a series of glass sheets12 to have surfaced. These tables are adapted to carry the sheets beneath a plurality of surfacing units not shown.

Each tabley is provided adjacent the opposite ends thereof with two sets of wheels 13 and 14, the wheels 14 being arranged inwardly of the wheels 13 and somewhat closer to- The wheels 13 running on tracks or when the sheets are being carried beneath the surfacing units while the wheels 14 are adapted to run on a second pair of more closely associated rails, not shown, and to support the tables` during the return trip thereof to the surfacing units. It will be noted upon reference to Fig. 3, that the wheels 13 are provided at both sides thereof with flanges 13 which engage the opposite sides .of the rails 15 and thus prevent lateral vibrating movement of the tables as the glass sheets are being surfaced.

In order to drive the tables 10 beneath the surfacing units, there are secured to the under surfaces of said tables adjacent the opposite sides thereof, splitv herring bone racks 16 and 17. These racks are engaged by pinions l-mounted upon a drive shaft 19, and upon rotation of the said drive shaft 19 and pinions 18, the tables will be moved. beneath the surfacing units. The provision of the herring bone racks 16 and 17 also serves toy prevent lateral vibrating movement of the tables during the surfacing of the class as a number of the teeth of the pinions are always in engagement with the teeth of the racks.

For the purpose of guiding the tables while under the surfacing machines, there are provided horizontally arranged wheels 20, rotatably mounted in recesses 21 formed in the sides of the tables. These wheels extend beyond the tables and engage horizontally arranged angle beams 22.

Carried by the bottom of each of the tables l0, adjacent one end thereof, is a substantially rectangular bearing block 23 provided in its opposite faces with recesses 24 and 25 separated by a vertical web 26 through which is inserted a horizontal I-bolt 27 provided at its forward or outer end with an eye 28. Re-

ceived on the inner end of the bolt 27 is a cup washer 29 which is secured against outward movement by means of a suitable nut or the like 30. Encircling the bolt 27 is a compression spring 31 having its opposite ends bearing against the vertical web 26 and cup washer 29, said spring acting to normally draw and hold the eye 28 within the recess 24, and to also hold the adjacent ends of the tables in abutment with one another as will be more clearly hereinafter apparent.

Carried by under surface of the adjacent end of the adjoining table is a bearing block 32 substantially U-shaped in top plan as shown in Fig. 6. The spaced side portions 33 and 34 of the bearing block 32 are provided with longitudinally extending guide ways 35 as shown in Fig. 5, and within which are slidably mounted follower blocks 36. rIhese blocks 36 are provided at their inner ends with annular flanges 37, and j ournaled within said blocks are the opposite ends of a crank shaft 38.

Loosely mounted on the opposite ends of the crank shaft 38 are the longitudinally eX- tending arms 39 and 40, which are joined at their forward outer ends and terminate in a hook 41 adapted to engage within the eye 28.

The hook is provided with a beveled face 42 adapted to engage and slide over the correspondingly beveled face 43 of the eye 28.

The bearing block 32 is also provided at its forward end with a recess 44 for receiving the arms 39 and 40. Spaced bearings 45 and 46 are also arranged within the recess 44 between the arms 39 and 40, and have inserted j therethrough a pin 47.

Loosely mounted on the crank or throw Y arm 48 of the crank shaft 38 is a lever 49, the

outer forward end thereof being received between the bearings 45 and 46, and having passed loosely therethrough the securing pin 47. Inserted through the lever 49, inwardly of the bearings 45 and 46, is a transverse pin 50, said pin being secured to the lever by nuts 5l and adapted to engage the bottom edges of the arms 39 and 40 to move the same upwardly.

When the tables 10 are coupled together, the various parts of the present invention will assume the positions shown by the full j a post 55.

lines in Figs. 5 and 6. l/Yhen it desired to uncouple the tables, the crank shaft 38 is rotated in a clockwise direction, and as the crank or throw arm 48 thereof is rotated upwardly and rearwardly, it will cause the follower blocks 36 and crank shaft 38 to slide forwardly within the guide ways 35. This sliding movement will cause the hook 4l to be moved forwardly within the eye 28. Continued rotation of the crank shaft 38 will raise the inner end of the lever 49 with the result that the ends of the pin 50 engaging the bottom edges of the arms 39 and 40 will act to raise the hook 4l out of engagement with the eye 28. l/Vhen it is desired to couple the tables together, the above operation is simply reversed. That is to say, the crank shaft 38 is rotated in a counter-clockwise direction to lower the inner end of the lever 49, whereby to permit the arms 39 and 40 to be lowered so that the hook 4l may engage with the eye 28. ldhen the trucks are properly coupled, the compression spring 3l acts to hold the adjacent ends of the tables in abutment with one another.

ln order that the trucks may be automatically uncoupled, the crank shaft 38 is extended beyond the table, and has keyed thereto, one end of an operating lever 53 carrying at its free end a roller 54 adapted to 'engage As shown in Fig. l, when the trucks are moved to the right, the roller 54, riding upwardly on the post 55, will act to rotate the crank shaft in a clockwise direction, whereby to disengage the hook 4l from the eye 29.

In order to properly center the tables prior to coupling them together, centering pins 56 are carried by the table at opposite sides of the bearing blocks 23. These pins 56 are carried by depending webs 57 and are receive-d within bosses 58 carried by the adjacent end of the adjoining table. Each of the centering pins 56 is provided intermediate its ends with an annular collar 59 adapted to abut the web 57, and a nut 60 is carried by the inner end of the pin. Thus, upon tightening of the nut 60, the centering pin 56 can be rigidly secured to the web 57.

ln Fig. 8, wherein has been shown a somewhat modified form of the present invention, the bearing block 32 is provided with guide ways 62 within which are slidably mounted follower blocks 63 having j ournaled therein a shaft 64. Loosely mounted on the shaft 64 is one end of the hook member 65 provided at its forward end with a hook 66 adapted to engage within the eye 28. rl`he hook member is formed intermediate its ends with a recess 67, and passing transversely through the said recess is a shaft 68 formed with an enlargement 69. Upon rotation of the shaft 68 in a counter-clockwise direction, the enlargement 69 will engage the hook member 65 and cause the same to be moved forwardly and upwardly so as to disengage the hook 66 from within the eye 28.

It is to be understood that the form of the invention herewith shown and described is to be taken as the preferred embodiment of the same, and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Claims:

l. In sheet glass surfacing apparatus, a plurality of tables arranged end to end and adapted to carry a series of glass sheets to be surfaced, a stationary hook member carried at one end of each table, a movable hook member carried at the adjacent end of the adjoining table and adapted for engagement with said stationary hook member to Ahold the ends of the tables in firm abutting relation, a crank shaft upon which the movable hook member is loosely mounted, horizontally slidable bearing blocks carried by the table and within which the opposite ends of said crank shaft are journaled, a lever loosely mounted at one end upon the throw arm of said crank shaft and being pivotally secured at its opposite end, and means carried by the lever and adapted for engagement with the movable hook member to move said hook member upwardly out of engagement `with said stationary hook member upon rotation of the crank shaft.

2. In sheet glass surfacing apparatus, a plurality of tables arranged end to end and adapted to carry a series of glass sheets to be surfaced, a stationary hook member carried at one end of each table, means carried at the adjacent end of the adjoiningtablehavinglongitudinally extending guideways, a crank shafthavingitsoppositeendsmountedforsliding movement within said guideways, a movable hook member loosely mounted upon said crank shaft and adapted forengagementwith the stationary hook member to hold the ends of said tables in firm abutting relation, a lever loosely mounted at one end upon the throw arm of said crank shaft, means for pivotally securing the opposite end of said lever, and means carried by the lever intermediate its ends and positioned to engage the movable hook member whereby to lift the same out o-f engagement with the stationary hook member upon rotation of said crank shaft.

3. ln sheet glass surfacing apparatus, a plurality of tables arranged end to end and adapted to carry a series of glass sheets to be surfaced, a stationary hook member carried at one end of each table, a bearing block carried at the adjacent end of the adjoining table and being substantially U-shaped in top plan, the spaced side portions of said bearing block being provided with longitudinally extending guideways, follower blocks slidably mounted within said guideways, a crank shaft having its opposite ends journaled in said follower blocks, forwardly extending arms loosely mounted upon the crank shaft adjacent the opposite ends thereof and being united at their forward ends to form a movable hook member adapted for engagement with the stationary hook member to hold the ends of said tables in firm abutting relation, said bearing block being provided at its forward end with a recess for receiving the arms therein, sp aced bearings also arranged within the recess between said arms, a pin extending between the bearings, a lever loosely mounted at one end upon the throw arm of the crank shaft and at its opposite end upon said pin, and a lifting element carried by the lever intermediate its ends, said element being positioned beneath and adapted to engage and lift the movable hook member out of engagement with the stationary h ook member upon rotation of said crank.

Signed at Toledo, in the county of Lucas and State of Ohio, this 18th day of October,

INGVALD O. PEDERSEN.

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