US1689729A

US1689729A - kelly

Info

Publication number: US1689729A
Authority: US
Publication date: 1928-10-30
Anticipated expiration: 1945-10-30

Description

Oct. 30, 1928.

W. M. KELLY PILE ELEVATING MEGHANISM Filed Aug. 6, 1921 3 .Sheets- Sheet 1 arneys.

Oct. 30, 1928.k 1,689,729 w. M. KELLY v PILE ELEVATING MECHANISM Filed Aug. 6, 1921 5 Sheets-Sheet 9 //7 Ven for.

Oct. 3o, 192s. 1,689 729 W. M. KELLY PILE ELEVATING MECHANISM Filed Aug. 6, 192i 5 Sheets-Sheet 5 `Patented Oct. 30, 1928.

uNlTEDsTArrs PATENT OFFICE.

WILLIAM KELLY, OI? JERSEY CITY, NEW JERSEY, .ASSIGNOR TO AMERICAN TYPE FOUNDERSCOMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Appnation ined August e, 1921. serial No. 490,289.

The presentrinvention relates to printing presses and more particularly to pile elevating mechanism therefor. It comprehends manual means to raise the pile constructed and arranged to permit the operation of automatic pile elevating mechanism without disturbing said manual means. To this end the vmanual meansincludes a one-way transmitting device such as a one-way clutch. The invention also includes two manual devices for elevating the pile, one adapted to raise the pile of sheets at a greater speed than the other and either means being operable wit-hout actuating the other. rThe invention also includes improved automatic means for elevating the pile controlled by the height kof the pile. All

stantially on the line 3-3 of Fig. 2, and

Figure 4: is `a sectional view taken substantially on the line 4-f1 of Fig. 3.

Referring to the drawings the form of the invention illustrated includes a pile supporting table 10 supported by brackets 11 verticallyslidable on theiways 12 of the side frames `13 of the press, vThe present invention comprehends meansfor raising and lowering the pile table 10.V vAs lshown the side frames 13 at the top thereof carry a transverse shaft 14:` and a sprocket 15 `is secured to this shaft adjacent the side frames 13. A chain 16 at its lower end `is secured. to each of the brackets 11`and passes. up over the sprocket wheels 15 and hence depends `at the other side of the 'connected by the gears 19 and 20. In this manner the shaft 18 is connected to the table 10 so that rotation of said shaft effectsy ver tical movement of the table.

The shaft 18 projects laterally from. the side frame 13 and carries an armv 21 loosely7 mounted thereon and adjacent thereto a ratchet wheel 22, the latter being secured to the shaft for rotation therewith in anysuitable manner as by means of a key 23. Referring to Fig. 1 it will be seen that there is asecond arm 24 which is adapted to be oscill ated by a cam 25, the arm` 24 carrying a roller 291a in contact with the periphery of t c cam for this purpose. The free ends of the arms 24C and 21 are connected by a link 26 so that the oscillation of arm 24 is transmitted to arm 21, the cam moving the parts in one direction, and spring 21u operative on arm 21 moving them in. the other direction. The oscillation of arm 21 is transmitted to ratchet wheel 22 by means of the pawl 27 pivoted at 28 on said arm. Retrograde movement of the ratchet wheel is prevented by a pawl 29 pivoted at 30. A plate 31 is also pivoted on the pin 30 andis provided with. an aperture 32 linto which .projectsa pin 33 carried by the pawl 29. The aperture 32 is of greater diameter than the pin 33 to permit the pawl to ratchet over the ratchet teeth. However the two p arts are associated so that wh enthe plate is moved. slightly in a clockwise direction on its pivot it will raise the locking pawl 29 out of engagement with the ratchet wheel. A latch 311 is adapted to engage with the tail 35 of the plate to hold `it in` raised position, a spring 36 being provided tending to pull the latch member' 341: into engagement with said tail 35. As clearly shown in Fig. 1 the plate 31 projects along under a pin 37 carried by the pawl 27 so that when "the plate is raised it strikes the pin 37 and disengages the pawl 27 from the ratchet wheel. In this manner both pawls may be Arendered inoperative when desired. i

From the foregoing it is apparent that the rotation of cam 25 `rotates the ratchet wheel 22 step by step, thus elevating the pile supporting table. Means is provided however for controlling this elevating mechanism in accordance with the height of the pile. For this purpose a shaft 33 is rotatably carried on the inside of the frame 13 and has an arm extending out over the top of the pile, as shown in liig.` 2, .this arm being secured to the shaft in any suitable manner by the clamp being' .operative on a link 43 the upper end ot which is pivoted to a lever 44, the latter being; carried by the side frame. 13. Another lever 45 is operatively connected to the lever 44 by a link 4G. Hence up or down .motion oi' the ieeler linger 41 through the part-s just dei scribed will be transmitted to the lever 45 raising and lowering the pin 47 or the tree end tliereot'. The link 26 carries a pin 4S which is positioned so that when the pin 4'? is moved downwardly ,as viewed in Fig. l, it will come into the pat-h of pin 4S and thus hold the arm 24 at the left hand end of its movementas viewed in said Fig. l. Thus when the pile is elevated suticiently the pin 47 is moved into contact with pin 48 and the automatic elevation of the pileis rendered inoperative. The lower end ot link 43 rests in a socket in arm 42, the pars being held together by springl- 43,

i ln addition to the automatic means for elevating the pile just described a manual device is provided and in accordance with this invention this manual device is independent of the automatic means inasmuch as the operation o the automatic means has noeffect on the manual device. As shown this manual device includes a worm wheel 49 loosely Vmounted on the shaft 18 and connected by a one-way clutch to transmit its rotation in one direction only to the ratchet wheel 22. As

shown in Fig. 4 the one-way clutch Vis ot the rollertype and comprises a spider 50 secured to the hub of the ratchet wheel 22 and a seriesoi' wedging rollers 51. The worm wheel 49 meshes with a worm 52 on a shaft disposed substantiallyl parallel with the sideframe 13. `At its rear end this shaft is provided' with a hand wheel 54. Nhen this wheel is turned in the direction indicated by the arrow 55 in Fig. v1 the table is elevated and even if 'the locking,r pawl 29 is thrown out ot engagement thetable willbe held in any position-by the friction between the worm and worm wheel. llowever the pitch of the worm is such that'if the hand wheel 54 is set spinning rapidly 'in the direction to lower-the table, the weight of thev table will automatically continue the lowering, the friction between the wormL and worm wheel no longer overcoming the weight of the table. It

y may be provided.

will'be understood that for this'lowering operationy'the locking; pawl 29 must be disengagged from the ratchet wheel 22. l

The rate of elevation of thetable through the manual meansjust described is relatively slow. It desired a more rapid manual means Thus as shown the shatt- 18 carries a handle 56 loosely mounted thereon and having a recess 57 in its hub adapted to receive a tooth 58 on the sleeve 5S secured to the sha'tt, when the handle is moved axially on the shaft 1S toward the leit as viewed in Fig. 3. lt will be observed that the tooth 5S has one side beveled so that relative turning4 ot the worm wheel and handle tends to throw the handle out oit engafrgement with said iinger. Y

It will be understood that cam 25 on shalt 25 is constantly rotated .in timed relation with the cycle of movements ot the press.

The press with which the present invention is particularly adapted to co-operate is described and claimed in my co-pendinn; application Serial Number 490,290, iilcd August c, i921.

Having thus described the invention what is claimed as new and desired to be secured by Letters Patent is:

l. Mechanism ot' the character described including in combination, a vertically mov able pile supporting table` a rotatably mounted member7 transi'nission means between said mcmbe and table to transmit motion 'from one to the-other including a one-way clutch and gearing; including` a driving gear, said gearing;- constructed and arranged when iuoperative to hold the table against lonf'cringi and to permit such loweringr at a substantial ly uniform rate when the driving gear is sct spinning` in the lowering;- direction, and other means functionally independent oit said clutch to act-nate the table.

2. Mechanism ot the character described including` in combination, a vertically movmovable pile supporting table;V a rotatably mounted member, transmission means between said member and table to transmit niotion from one to the other includingr a oneway clutch, and an automatically operated means 'functionally independent ot said clutch to raise said table.

3. Mechanism oi the character described including, in combination, a vertically movable pile supporting` table, and manually op' erahle means to raiseor lower said table, in` cludinp; two meshing` gear members. said gears being constructed to hold the table against lowering when t-he gears are not rotating and when one is set spinningf in theI direction to lower the table, the lowering' will continue automatically at a substantially uniform rate .because ot the weight of the table.

4. ln a sheet feeding' meclianism, in combination, a pile supporting table, a shalt adapted, when turned, to raise or lower said table. means controlled by the elevation of the top of the pile to turn said sha'tt to maintain the top ot the pile substantially at a prcdctermined elevation, a worm wheel, a one-way or over-running' clutch to transmitI motion from the wheel to the shattonly in the direction to raise the table and permit operation of said automatic means without rotating said wheel. a worm meshing` with Said worm wheel and manually operable means to turn said worm.

5. Mechanism of the character described including in combination, avertically movable pile supporting table, manually `operable means to raise the table, releasahlc nicans holding the table against downward movement, said manual means constructed and arranged when inactive to hold the table against downward movement when the releasal'ile means is released and when set in motion in the proper` direction to be actuated by the weight of the table to lower the latter at a substantially constant speed.

- 6. Mechanism of the characterdescribed including in combination, a vertically movable pile supporting table, means to elevate said table constructed and arranged when inactive tozhold `the table against a lowering movement andnwhen set `in motion in the lowering direction to be actuated by the weight of the table to automatically continue the lowering at a substantially uniform rate.

7. Mechanism of the character described including, in combination, a vertically movable pile supporting table, means to elevate said table including a worm and wheel havin" a n pitch such that, when the worm is inactive,

ment, but when the worm is spun in the direction to lower the table, the lowering will continue automatically at a substantially uniform rate becauseof the weight of the table.

8. Mechanism of the character described including in combination a vertically movable pile supporting' table, a rotatable shaft, means operatively connecting said shaft and table, manually operable means to turn said shaft includingl a one-way clutch, a releasable manually operable means to turn the shaft, and automatically actuated means to turn the shaft step by step.

9. Mechanism of the character described in cluding in combination, a vertically movable table, a rotatable shaft, motion transmitting means connecting said table and shaft, a hand crank operatively connected with said shaft to turn it in one direction only, hand operated means to turn said shaft at a slower speed, automatically actuated means to turn the shaft step by step and rcleasable ratchet means to hold the shaft against turning` in the table lowering direction.

10. Mechanism of the character described including in combination a vertically movable pile supporting table, a rotatable shaft operatively connected with said table to raise and lower the same, a wheel secured to said shaft, automatically actuated means operable on said wheel to turn the shaft in table raising direction and manually operable means including a one-way motion transmitting means associated with said shaft.

11. In a sheet feeding mechanism, in combination, a pilesupporting table, a shaft adapted, when turned, to raise or lower said table, means controlled by the elevationof the top of the pile to turn said shaft to maintain the `top of thev pile substantially at a predeter-` mined elevation, a worm wheel, acne-way or over-running clutch to tran smit mot-ion from the' wheel to the sha-ft only in the direction to raise the table and permit operation of said automatic means without rotating said wheel, a worm meshing with said worm wheel, and manually operable means to turn said worm, the pitch of the worm and worm wheel being such that the table is normally held against lowering and, when the worm is set spinning in the direction to lower the table, the lowering will continue automatically at a substantially uniform rate because of the weight of the table.v

l2. Mechanism of t-he character described including in combination a vertically movable pile supporting table, a rotatable shaft operativelyconnected with saidftable to raise and lower the same, a wheel secured to said shaft, automatically actuated means operable on .said wheel to turn the shaft in table raising directionA` and manuallyoperable means including a one-way clutch operable on the hub of said wheel. 1 the table will be held against lowering' movei i 13. Mechanism of the character described including, in combination, a rotatable shaft, a ratchet `wheel secured to said shaft, means at one side of said ratchet wheel connectingr the `shaft and table to raise or lower the latter in accordance with rotation of the shaft, manually operable means disposed on the other side of said wheel to turn said shaft in the raising direction, said manual means including a one:- way clutch, and an automatically actuated pawl adapted to turn said wheel step by step.

11i. Mechanism of the character described including, in combination, a rotatable shaft, a ratchet wheel secured to said shaft, a vertically movable pile supporting' table, means 0n one side of said wheel connecting` the shaft and table so that the latte-r is .raised and lowered by turning .the shaft, manually operable means to turn said shaft disposed on the other side of said ratchet wheel and including gearing and a one-way clutch an automatically actuated pawl adapted to turn said wheel step by step, and a second and releasable pawl associated with said wheel to hold said shaft against turning in one direction. 1

l5. Mechanism of the character described including, in combination, a rotatable shaft, a ratchet wheel secured to said shaft, a vertically movable pile supporting` table, means onone side of the wheel connecting' the shaft and table so that the turning of the shaft raises or lowers the table, manually operable means on the other side of the ratchet wheel to turn said shaft in the raising direction, said manual means: including a worm and `worm wheel and a one-way clutch, and an automatically actuated pawl adapted to turn said leo ratchet wheel step by step, the movement of said pawl being controlled by the height of the pile.

16. n a sheet feeding mechanism, in combination, a pile supporting table, a shaft adapted, when turned, to raise or lower said table7 means controlled by the elevation of the vtop` of the pile tot-urn said shaft to maintain `the top of the pile substantially at a predetermined elevation, aworin wheel, a one-way or over-running clutch to transmit motion 'from the Wheel to the shaft'only in the direction to raise the table and permit operation of said automatic. means without rotating said wheel, a worm meshing with said worm wheel, the pitch of thel Worm and worm wheel being 4such that the table is normally held against lowering and, when the worm is set spinning vin the direction to lowerv the table, the lowering will continue automatically at a uniform rate because of the weight of ther table, said automatic elevating means including a ratchet wheel, and said ratchet wheel, worm wheel and clutch all being mounted on sai-d shaft.

17. Mechanism of the character described including in combination a vertically movable pile supporting table, means to raise said table including a rotatable cam, an arm actu- .ated by said cam, a ratchet wheel, a pawl op erative on said wheel and actuated by said arm, means controlled by the height of the pile togovern the engagement of said arm 4a link connecting said arms, a pawl on said second arm operative on said wheel to actuate the latter and means controlled by the height of the pile to govern the action of said pawl.

19. In a sheet feeding mechanism, in combination, a pile supporting table, a shaft adapted, when turned, to raise or lower said ',table, means controlled by the elevation of the top of the pile to turn said shaft to maintain 'the top ofthe pile substantially at a predetermined elevation, a worm wheel, a one-way or 'overaunning clutch to transmit motion from the wheel to the shaft only in the direction to raise the table and permit operation of said automatic means without rotating said wheel, a worm meshing with said worin Wheel, and manually operable means to turn said worin, said automatic means including a ratchet -wheel, and said ratchet wheel, worin wheel and clutch all being mounted on said shaft. n testimony whereof I hereunto affix my VILLIAM M. KELLY.

- signature. with said camymanualV means to turn said i