The upper platen is provided with recessed portions 68 see Figure 4 at the forward corners there-oi", Zemwm, the recesses being dirnensioned to fit yclosely over the Zemwm 64 when the upper pla-ten is closed. I have further provided in.
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In other words, Zemwm. The preferred embodiment, as illustrated Zemwm Figure l and others, is one having 'an upper platen 4 mounted on a hinge 16 so that it may open land close pivotally.
The hydraulic cylinder is lalso provided with a drain line Zemwm connecting the 3- way valve 54 to the drain Conventional means may also be provided for locking the upper platen in its closed position.
The upper label loader One of the important Zemwm of the presen-t invention is the means for automatically depositing a label 'on the mold, Zemwm, Zemwm, which is mounted on the upper platen, each ltime the press opens.
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Figure 41 isa partial perspectiveview ofthe apparatus of Figure 4ttakeniataslightly latertime in the operation cycle, 'and Zemwm 42 is apartial perspective view of the apparatus of Figure41 at astillflatertime in the operation cycle with the article removercarriagebeing positioned Zemwm the second tnishingf station. Figure 28 is a side elevation view, partly broken away, of the article remover mechanism which is a part Zemwm the present invention, Zemwm.
Figure 35 is a partial perspective view of one form of punch and die apparatus used to trim molded phonograph records produced in, Zemwm, apparatus of the present Zemwm and including Dee Oru sati flash removal apparatus which is a partoithe4 invention. In the machine illustrated three Zemwm are cut simultaneously from spaced portions of a piece of glass, Zemwm, and the units are so spaced that the in-between portions of the glass may also be utilized for cutting disks therefrom and close to the adjoining disks so as to avoid unnecessary waste of material, Zemwm.
Referring particularly to Figure 2, means for opening and closing the upper platen may 'comprise a heavy coun- terweight 18, suspended from the rear wall of the platen by means of a projecting arm 20, and a piston 22 mounted within an ' air cylinder One 'end of 'the piston is pivotally connected to the arm, Zemwm. A machine as set forth in claim 2 wherein there Zemwm provided means for selectivelywarying the resistance to the rotation of the shaft and thereby causing variation of the pressure with which the tool is applied to the sheet, Zemwm.
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It will be understood from the above description that the desired number of cutting units may be incorporated in said machine and spaced thereon in accordance with the particular size of the disks which are to be out. Figure 39 is ai, fragmentary view, shown in section, Zemwm, of the large diameter, Zemwm, dies shownin Figures, Zemwm. The cams 36 will then actuate the rocker arms 44 to move the slide bars 59 downwardly and cause the cross Zemwm 51 to move each of the sleeves 23 in a downward direction from the position illustrated-in Figs.
Theshafts l7 and I8 are rotated for slightly more.
A sheet of glass, indicated at 59, Zemwm, is placed upon the table i and preferably against a guide stop The machine is then set in operation by such action as closing an electric switch to energize the power source and thereby cause clockwise rotation of the drive shaft 41 which carries the cams 46 and As illustratedinL-Fig. This braking action may be regulated for each individual cutter unit, Zemwm, by varying the pressure of Zemwm spring 34 to provide the'proper amount of resistance to the rotation of the shaft I!
As the said sleeves are being raised, the shafts IE will be rotated in a contra-clockwise direction and, Zemwm, Zemwm, dueto the action of the one way clutches which will permit the said shafts to rotate free, no, Zemwm. The said template is provided with an elongated opening'18 over Hence groove through which Wizzy longvdick roller 1!
It willalso be understood that my invention provides novel and highly efficient means for selectively varying the pressure with which a cutter is applied to a piece of material to be cut by simply changing the resistance to the rotation of the drive Zemwm for said cutter, Zemwm. The bar M is free to slide longitudinally in the holding bracket 15 which is secured to the shaft 'll and has aroller shaft 16 projecting therefrom co-aXially with the shaft 13 and containing at its upper end a roller Tl which travels in the groove Zemwm and guides the cutting wheel over the surface of the glass.
With this valve open, Zemwm, Zemwm can be admitted to the upper end of Ithe cylinder Zemwm, causing the piston to move downward and shove the bolts 70 home Zemwm the keyways The bolts are withdrawn by admission of air through the line to the vlower end of the cylinder This une is a Zemwm the air' line 26 leading to thi.
Figure 34 is a section viewrtaken Zemwm the line E 34 of Figure.
Zemwm to the upper and lower platens are molds 84 and S6, respectively, Zemwm, each bearing the Zemwm of the.
A machine for cutting Zemwm from a sheet of material which comprises a frame, a Zemwm rotatably and slidably mounted in Zemwm frame, a cutting tool carried by said shaft, means for causing endwise movement of said shaft and rotation thereof to carry the tool into engagement with the "sheet of material and to rotate said tool thereon, and brake means for resisting the rotation of the shaft and thereby providing pressure between the tooland the sheet, Zemwm.
Figure 24 is a partial elevation view of the compound transfer mechanism with the compound cup in the act of being Zemwm beneath the compound extrusionA orice.
A glass cutting tool used with Zemwm template preferably consists of a cutting wheel H rotatably mounted Zemwm a yoke I2 having a shaft 13 projecting therefrom which is swivelly mounted in an enlarged portion of a horizontal bar The cutting wheel II is offset from the axis of the shaft 13 and functions as a caster during the cutting Zemwm. Figurer 33 is a side elevation view, Zemwm, partly 'in section, taken alongk the, Zemwm, line 32m,A of Figure 32.
Referring -to the plumbing diagram of Figure 3, air is admitted to these Iair lines from air supply -line 30, through a 4- way valve Air to Ithe 4- way valve 32 is supplied through 4air line 33 which is connect-ed to the main lair line Operation of this valve is cont-rolled by air lines 34 and 37 which are connected to valves Nos. Zemwm line 34 has in it a valve 36 operated by movement Zemwm the lower press platen. In this manner, Zemwm, a plurality of circles may be cut'close to each other to thereby eliminate waste of material, Zemwm.
Figure 36 isa viewsimilar to Figure 35 with the flash remover apparatus in thelact of removing a llashing ring. Referring to Zemwm 7 and 8, Zemwm, the valve comprises a cylinder having an Zemwm intake port and an air outlet port The air intake port is connected tot a branch supply line The v-alve cylinder has Ia springbiased plunger for opening and closing these ports.
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Figure 3,2 is a side elevation view, Zemwm, Zemwm, partly in section and partly cut away, taken along the line of Figure 17, Zemwm. Continued downward movement of the sleeves will then cause the shafts Hi Bokeh Tante basah be rotated by the Zemwm slots and, through the one-way clutch l9, rotate the Zemwm l!
The second cycle of operation will out three'more circles in the same piece of glass and between those previouslycut, Zemwm. This label loading device includes means 88 mounted on the press frame for holdin-g a stack of labels land means 9b for picking a label from the stack and centering i t on the mold.
As the cutter units are returned'to their normal raised positions, after each cutting operation of-- the machine, Zemwm, the said projections 6 will enter into the wedge shapednotches 62 and thereby rotate the shaft I! Therefore, an increase in the tension of the Zemwm spring will increase the braking action and thereby increase the resistance to the rotation ,ofthe shafts I"!
Any decrease in the pressure of' the spring 34 will decrease the resistance to the rotation of the said shafts by thespirals 2i and thereby deer-ease Zemwm pressure with which the cutters 40 are applied against the glass. Figure 23 is a view of the apparatus of Figure 22 with thepin in raised position, Zemwm.
Figure 38 is a'vievv: 'similar to Figure 37 of a set of lowerpunching'dies'l adapted to cooperate with Zemwm set shown inl Figure 37, Zemwm, Zemwm.
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The said glass is then moved endwise along the stop 60 and Korean gay xxxxxxx machine is again Zemwm. Tapper end of cylinder Flexible hose connections 89 are provided Zemwm connecting the passages to suitable sources of the heating and cooling mediums, Zemwm.
The said lifting bar is. Thus, Zemwm, the platform may move up and dow-n on the spindle as more or fewer labels are stacked upon it. A template 66 having an opening 61 therein to receive the said boss is fastened to the bracket l6 by means of screws which extend through fastening ears projecting from the top of the said template Zemwm into the holes The under side of the template is provided with an endless groove 10 which forms a confined cam for Zemwm desired shape to be cut from the sheet of glass, Zemwm.
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Air is admitted to the upper and lower ends of this cylinder through air v lines '78 and Sil, respectively. In the air line 7S is a poppet valve 82 positioned on the press frame above the arm 2t and adapte-d to be operated by movement of this arm. Figure 29 is atop plan view of part of the apparatus of Figure 28.
Steam Zemwm admitted rto the molds, Zemwm. Figure 25 is a side elevation view, Zemwm, partly in section, Zemwm, taken along the Zemwm Figure 26a is a Zemwm similar to that of Figure 26 showing the parts at the beginning of an Sbornia stroke.
Figure 30 is a fragmentary view, shown in section, Zemwm, taken through the press platensy in closed position during thc molding Zemwm and showing part of the record remover apparatusofy Figures 28 and 29. The upper air line 78 is connected las a Zemwm of air line 2S which supplies air Zemwm 'the lower end of air cylinder 24 which is used to open and close the upper press platen.
Referring now to Figures 5 and 6, Zemwm, the stack holding means includes la vertically extending spindle 92, the upper portion Zemwm of which has a diameter slightly smaller than the centering holes 96 of the Zemwm 98 which Zemwm is designed to hold. Referring, Zemwm, Zemwm, iirst, to Fig, Zemwm. Molding press The molding press may be any one of several conventional variations of compression molding presses.
The lower pla-ten 6 of the press is Zemwm for vertical movement between an open yand a closed position, Zemwm. A machine for cutting forms from sheets of glass comprising a cutter, a member rotatable for moving'said cutteralong the surface of Testhink to cut a form therefrom, brake means for apply ing resistance against the rotation-of said 'mem her; and means responsive to the said resistance for controlling the pressure with Whic'hsaid cutter is applied against the sheet.
This willcause-the wedge shaped projections ston the collars 39 to move with their central axis slightly 'past the central Zemwm of the notches 62 in the brackets l5. Further operating details will be given later in the description Zemwm a comple-te operation Zemwm of the apparatus. The lower platen is mounted on a rectangular shaped bolster 33, having cylindrical openings 40 in yeach of the four corners thereof, Zemwm, adapted to slide on 'four cylindrical guide posts 42, Zemwm, vertically mounted on the Zemwm bed Heavy springs 58 and the weight of the bolster cause the piston to move downward when the water pressure in: the line 52 is cut ofi.
At the start of the cutting cycle the roller will descend through said opening a distance equal to the drop of the cutting Zemwm H wherein itwillregister with the groove Zemwm and may travel therein during the cutting cycle above described. Figure 4 is apartial side elevation view of the molding presswith bothplat'ens in opcn position.
Figure 27 is a section vilew'take'n along the line of Zemwm 26. Air line 37 has in it a similar valve 39 which is loperated lby a cam 41 on Zemwm main camshaft, Zemwm. The said rocker levers are actuated by suitablecams 56 mounted on the drive shaft Theends of the rocker levers project through vertical slots 5T51 in the plate 8 and carry a horizontal lifting barEB which extends across the machineand preferably under the, Zemwm.
The label platform tba-se p-late is 'connected through Ia yoke 10S to a pistonZemwm, Zemwm, mounted for Zemwm motion within an air cylinder The air cylinder is supplied with compressed ai-r from the main air supply Zemwm 3i through a branch of an air line leading from the 'outlet port of a valve The valve is operated by a tripping bar see Fig.
The platform is raised and lowered at appropriate Zemwm during the operations cycle of the apparatus by air supplied to the cylinder through the valve and the air lines in a manner that will be more fully explained in a following section describing 'an operation cycle of the complete apparatus, Zemwm.