US1883369A - Leer loader - Google Patents

Description

Oct.v 18, 1932. c. H. HARDMAN LEER LOADER Filed April '29. 1929 C yoj/A H Hardman,

' a@ Mym l domqs Patented Oc't. 18h-193.2

warren .STATES PATENT; OFFICE CYl H. HARDMAN, OF ZANESVILLE, OHIO, ASSIGNOB TO HAZEL-ATLAS GLASS C0., I

WHEELING, WEST VIRGINIA, A CORPORATION 0F WEST VIRGINIA LEER LOADER o This invention vrelates to leer loaders or feeders and has for its primary -object to provide a mechanism for feeding glassware from a plurality of forming machines to a leer. Prior devices have been constructed for feeding ware from a plurality of forming machines to a leer, but such prior constructions were for use with relatively large leers which were situated in the factory at a considerable distance from the forming machines. The present construction is intended for use with leers placed close to the'forming machines and generally termed individual leers; 4although in the embodiment shown the leer is somewhat larger than an individual leer. so

'as to have a capacity for receiving the ware from two forming machines.

Another object of the invention resides in the provision of a compact arrangement of conveyers for presenting` the ware in front of the leer from whence it may be readily projected into the leer in orderly fashion with the ware from each machine segregated from that of the other.

,1 A further object of the invention consists in the provision of an attachment to an ordinary stripper bar by means. of which the ware may be carried from two separate conveyers to the leer conveyer. I

Other objects and advantages of the invention will be apparent from the following descri-ption when taken in connection with the accompanying drawing.l in which Figure 1 is a perspective view of the front end of a leer with the novel leer loader installed thereon; and

Figure 2 is a 'more' or less diagrammatic view showing the arrangement of the forming machines, cross-conveyers, etc., in connection with the leer and leer loader.

Referring to the drawing in detail, the numeral 1 indicates a leer of the individual type,

`but made slightly larger in order to accommodate ware from two forming machines 2 and 3. As will be understood, these individual leers are ordinarily placed close to the forming machines and the ware is transferred from the forming machine to la cross-conveyer by a take-out mechanism, and thence projected onto the leer conveyer by a leer loader, without substantial loss of heat.

In the present embodiment of the invention the leer conveyer is indicated by the numeral 4, and the cross-conveyers for the two form-v ing machines are indicated by the numerals 5 and 6. These conveyers are s aced apart slightly and the space is bridge by a plate 7 to providefor the passage of the ware fromV the outer conveyer into the leer. Likewise the usual shadow pan 8 is provided for bridgingthe gap between the conveyer 5 and the main leer conveyer 4. -Short conveyers 9 may be employed for transporting the ware fromthe forming machines to the cross-conveyers and under such circumstances rotatf able tables 10 are used for transferringthe ware from the conveyers 9 to the cross-conveyers 5 and 6.

Where a sin le cross-conveyer is employed for carrying t e ware 'across the front of a leer a variety of leer` feeding devices have been employed for projecting the ware from the cross-conveyer into the leer. -The essential features ^of one such device are disclosed herein and are shown and described in detail in the application of Arthur Covey, Serial and is also rocked about a pivot 13 so as to lift the stripper bar 11 over the oncoming ware on conveyer 5 as lthe stripper bar is moved toats outer position in preparation for projection of a row of lware onto the leer conve er. Thisvmechanism has been full describe in the application above referre to and need' not be repeated herein except to indicate the type of leer feeder to which the present invention relates.

,So far as the feeder itself is concerned my improvement consists of an auxiliary stripperbar 14 which is connected to the main strip-` per bar 11 by an arm 15. This auxiliary'bar is rigidly connectedA to the main bar 11 so as to be reciprocated in unison with' it and to be raised and lowered as the latter is raised and lowered. Therefore, as the stripper bar 11 carries a row of ware from the conveyer 5 onto the leer conveyer the auxiliary bar 14 will move the ware on theconveyer 6 an equal distance, namely, onto the shadow pan 8 y as indicated by reference character X on Figof the leer toward the center of the leer, and

in order to limit this movement to the center line of the leer,'I rovide a bar 16. This bar extends across bot i conveyers 5 and 6 and is fixed in position in ali nment with the center line of the leer 1. l onsequently, the ware from the two forming machines will remain segregated at' all times inasmuch as the rod 16 will prevent any overlapping of the ware as it is being transported into position for transfer to the leer conveyer 4.

It will be noted that in the specific arrangement illustrated, thejcross-conveyer 5 moves from left to right, and the stripper bar 11 forl this conveyer has its right end attached to theA bar orsupport 12 and its left end free; while the cross-conveyer 6 moves from right to left and the stripper bar 14 for this conveyer has its left end attached to the arm or support 15 kand its right end free. It is apparent therefore that the supports for the two stripper bars will never cross the path actually traveled by the ware on either cross-conveyer, and hence theware has a free passage at all tlmes, and 1t 1s unnecessary l,to intermittently stop the free passage of ware on the cross-conve er. p

ile the operation of the several `elements of the mechanism have been referred to in connection with the description of the structure, I will now` describe brieli the general operatlon of the complete assem lage.

The articles produced on the forming ma- .chines 2 and 3 are transferred to the cross conveyers 5 and 6 by conventionalt .es of takeout mechanisms or by such mec anisms in con'unction with" the conveyers 9 and turntab es 10. The ware received on these crossconveyers 1s conveyed from the opposite sides of the leer into position in front of the leer in alignment with the leer conveyer 4. This movement of the wareis limited to the center line of the leer by means of a stop bar 16 which `prevents anyoverlapping of the two lines of ware. In accordance'with the timing of the mechanism the stripper bar 11 is drawn across the conveyer 5 and moves the ware which is in veyer as shown in dotted` lines in Figure 2. At the same time the auxiliary stripper bar .14 is drawn across conveyer 6 and moves such ware as is in front of its half of the conveyer 4 onto the shadow gan 8 as indicated by reference character The bar 12 is then yswungup about its pivot 13 and moved rearward y and then downinto its original position as shown in full lines on Figure 2. Upon the next movement of thestripper bars toward the leer, which occurs when the crossconveyers have brought additional ware to the frontof the leer, the stripper bar 11 will first carry ware from conveyer 5 onto the shadow pan 8 at which' point it engages the ware X and carries both rows onto the leer conveyer 4; at the same time the auxiliary stripper bar 14 will move another row of ware from conveyer 6 onto the shadow pan, and so on while the apparatus continues in operation. It will thus be seen thatthe apparatus including the cross-conveyers, stripper bars, etc., provides for not onl conveying the ware from two forming'mac ines to an `adjacent leer, but also maintains the ware' from each machine segregated from that of theother machine and so deposits it in the leer.

From the foregoing description it will be apparent to those skilled in .the art that the present mechanism, which is of simple and inexpensive construction, is reliable in operation andV contains no delicate mechanism which is liable to become disorganized. It will also be noted that t e'compact arrangement of leer loader whi h is capable of accommodating the ware from two forming machines permits of the installation of a leer adjacent the forming machines with all of its attendant advantages. Moreover, the ware4 frfm the two machines is segregated throughou The preferred embodiment of the invention has been described herein as r uired by the patent statutes, but -it is to be un erstood that the specific mechanism is capable of various modifications as to details of construction without departing from the spirit of the invention and. all such changes are intended to be included within the scope of the appended claims. Y 4

What I claim as new and desire to secure by Letters Patent is: a

1. In a device of the class described, a leer, conveyers traversing the front of `said leer, a

los y lll dead plate between said conveyers, a shadowf pan-between one of said conveyers and the main leer conveyer, and means for simultaneously projecting ware from one of said conacross the front of the leer, a second cross-con- 've er travellng across the front of the leer and arranged rear of the first-mentioned cross-conveyer, alstripper bar of substantialspacing arm extending rearwardly from said l stripper bar,.a second stripper bar of substantially half the width of the leer carried by said spacing arm and of substantially half the width of the leer conveyer.

4. In a device of the class described, a leer, a leer conveyer, a cross-conveyer carrying ware across the front of the leer, a shadow pan between said crss-conveyer and the leer conveyer, a second cross-conveyer arranged rearwardly of the first-*mentioned cross-conveyer and simultaneously carrying ware acrossthe front of the leer in a direction opposite to that of the first-mentioned cross-conveyer, a main stripper bar conveying ware from the first-mentioned cross-conveyer andfromthe shadow pan onto the leer conveyer, and an auxiliary stripper'bar associated with the main stripper bar, said auxiliary stripper simultaneously conveying ware -from thel second-mentioned cross-conveyor lonto the shadow pan.

5. In a'device of the class described, a leer, a i

leer conveyer, two cross-conveyers arranged in front of the leer, ,the two cross-conveyers` traveling in opposite directions, and one arranged in rear of the other,a shadow pan between the leer conveyer andthe forward cross-conveyer, means for feeding ware from the forward cross-`conveyer and from the shadow pan onto 'the leer conveyer', and means for simultaneously feeding ware from the rearward cross-conveyer onto the shadow pan.-

6. In a ranged in front of the leer, said cross-conveyend free, and extending substantially half the width of the leerlconveyer, forthepurpose described. 'l

A devlceof the character described, a leer, a leer conveyer, two cross-conveyers ar-

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