US1646441A - Mechanical movement - Google Patents

Description

BELLUCHE MECHANICAL MOVEMENT Filed Dec. 14, 1925 4 sheets-Sheff; 1

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oct. 25,1927. 1,646,441

F. R. BELLUCHE MECHNI CAL MOVEMENT Filed Deo. 14, 1925 4 Sheets-Sheet 2 INVENTOR 1,646,441 F. R. BELLUCHE MECHANICAL MOVEMENT Filed Dec, 14, 1925 4 Sheets-Sheet 3 ww/ww..

Oct. 25, 1927.

' l 646 441 25 1927 F. R. BELLucHE MECHANICAL MOVEMENT 4 sheets-'sheet 4 Filed Deo. 1.4, 1925 INVEN TOR ha iMac/ie. Mb oww.

Patented oct. 25, 1927. r

I UNITED STATES imisrrr-l *torrier..l

SIGNMENTS, TO MILLER SAW-TRIMMER COMPALNY,.OF VANIA, .A CORPORATON OF PENNSYLVANXA. j l.

MECHANICAL MOVEMENT..

Application filed December My invention pertains to mechanical movements, and krelates especially to mechaiiical movements of the general character employed in bed motions for printing presses such as lthat described in Letters Patent No. 1,398,817, granted November 29, 1921, to Burt F. Upham and myself or such mechanical movements as are described in the copending application of Burt F. Upliam filed of even date herewith.

It is t-he principal object of my invention to improve upon mechanical movements of the general kind disclosed in tliesai'd Patent No. 1,398,817, by simplifying the guard shoe construction and eliminating the necessity for guard rolls in addition to the reversing wrist pins. Other objects will appear from the following description taken in connection with the claims annexed thereto.

My improvements aie embodied in the mechanical movement described, by way of eX- ample, in the following"specication, and shown in the accompanying drawings, in which:

Fig. 1 is a partial side elevation of a bed and cylinder print-ingV press embodying my presenti invention as a means for effecting the reciprocation of the type-bed, the latter being shown in one of its eXtreme end positions;

Fig. 2 is a sectional end view, the section being taken on the line 2-2 of Fig. 1;

Fig. 3 is a sectional elevation, taken on the line 3-3 of Fig. 2, looking in the direction of the arrows, the parts, however, being shown in the position in which the type-bed has just concluded its uniform movement towards the right and is just Aabout to be slowed down prior to reversal;

'F ig. 4f is a section on the line l-'Ll of Fig. 3, looking in the direction of the arrows;

Fig. 5 is a perspective view of one of the wrist pins; f

Fig. G is a det-ail section taken on the line 6-6 of Fig. 3; n v

Fig. 7 is a section on the line 7 7` of Fig. 6, looking towards the right; i

8 is a similar section but lookingtowards the left; and f F ig. 9 is a diagram illustratingA themanso ner of operation of the guard heads Lwith which-the wrist pins are provided.I y

vThe press comprises a pair ofmain side frames 10 and 11 carrying between them subframes 12and 13. Atthe .upper edgesV of the 14, 1925. serial N.f7 5,'16el latterare formed tracks for the recept-ion of rolls 14, and upon these latterthe bed, 15 ruiisI in the wellknown manner. To the underside of the bed are secured a pair of rrrrsennerr, erinnern-s racks 16 and17, one `oiileach side ofthe lon,-

gitudinal centerline of the bed.v One of these racks is utilized in effecting the uniform movement ofthe bed in one direction, the other being utilized for effecting such uniform movement in the oppositedirection. The non-uniform movements of the bed, in stopping, reversing and starting in the opposite direction, are efected'by reversing rolls mounted on wrist pins carried by reversing wheels, such wrist pins engagingreversing shoesformed upon a .hanger 18 centrally 'disposedwith respect to the Vbed and extending downwardly from thelatter. n

, A main drive shaft 19 (Figs. 1 and: 2) vis mounted in suitable bearings-carried by the sub-frames12`and 13 andfhas secured theretoa pinion 20v which meshes with .a ygear 21 secured to a-,shaft 22. lThe latteris mounted in alarge bearing 23 carried by the` subframe 12 and'extends outward'through the side frame V10, having secured thereto, at its outer end, alarge gear 24. The latter meshes ywith the gear '25 of theimpression cylinder 26. The gears 2K1 and V25 are ofthe vsame diameter, so thatk they cylinder rotates uniformlywith the gear 21.` i i A-stub'shafft 27. (Figs. 1 toe) is mounted Vin a bearing of thev sub-frame 12 and carries the right-handreversing wheel 28, which is .i",gea.rl wheel of. the same 'diameter as, and

meshing with, the gearj-21. Thek wheel. 28

is terin'edtlie right-handreversing wheel because it carries a wrist pin and reversing roll, andy effects t-he slowing down, reversing and restarting `ofthe bed at the right-hand end of the travel of the latter. l

' Mounted'ona stub shaft 29, carried-bye bearing oftliesub-frame 12,. and longitudi- 'nallyjm'ovabl-e/on such shaft, is thejlefthand bed-driving'- piniony `30, so called because it "i effects-f tlieuniform movement of the type bedy in the left-hand direction. Thisv pinion 3() 'meshes continuously with the teeth of the reversing wheel 28,1but', by longitudinal Vmovement Onitsshaft 29, it can be moved i n intoV and out. of operative relationl with the vbed'rack 16;' 'i' The'leftsha'nd 'reversing' wheel 31" is car rie'df Iaf stub., shaft y32 ofnthesubsframe '13 y and is a gear wheel of the same diameter as the right hand reversing wheel 28 and gear 21. It is driven by a pinion 33 on the main drive shaft 19, this pinion being of the same diameter as the pinion 2() which drives the gear 21. With the teeth of the wheel 31 meshes the right-hand bed-driving pinion 34, which is mounted on a stub shaft 35 carried by a bearing of the sub-frame 13. This pin 'ion is longitudinally movable upon a shaft,

into and out of operative relation with the bed rack 17.` y i The bed raclrs 16 and "17 are of a length equal to one-halfV the pitch circumferences of the reversing wheels 28, 31; and, from this and the preceding description of `the gearing, it will be understood that the press now being described is ofthe two revolution type, having what is known as the .two to one bed motion. N

Secured `to the shaft 22, on the outside of the frame 10, is a pinion 36 which engages with a gear 37 carried by the cam shaft 38. The gear 37 is twice the diameter of the pinion 36; so that the cam shaft makes one revolution for each cycle of the press.. Upon the shaft 38 is secured a cam 39 having a groove 40 in which engages a roller carried by the lower end of a cam lever 41. The cam lever 41 is pivoted to the sub-frame 13 (F igs. 3 and 4) and has pivoted thereto, at its Vupper end, a block which engages in a channel 42 formed in the hub ofthe righthand bed-driving pinion 34. Pivoted to the sub-frame 12, and connected to the lower end of the cam lever 41 by a link `43, is a second cam lever 44 having pivoted to its upper end a block which engages a channel 45 of the left-hand bed-driving pinion 30. The groove 40 `of the cam.39 is such vthat the cam levers 41, 44, will bev moved transversely to the right (Fig. 4) `during one quarter, held stationary during the next quarter, moved to the'left during the next quarter, and held stationary during the last quarter, of the cycle.

In the position of the part-s shown in Figs. 3 and 4, the cam39` has held the right hand bed driving pinion 34 in engagement with thebed rack 17 fora quarter cycle of the press, which is a one half revolution ofthe left-hand reversing wheel 31, and has held the left-liand bededriving `pinion 30 out of engagement with the bed rack 16 duringthis period. Thus the bedhasjust been given a uniform movement equal to one `half the pitch circumference of the reversing wheel.

`At (this point the` rack 17leaves the pinion 34 lengthwise During the `.next quarter cycle, during which the racks 16 and 17 are ont of engagement., with the `pinions 30 and 34 and the reversing operation is` taking place, the cam 39 will shift the pinions 30 and 34 to the left, thus moving the pinion 34out of the path of the rack 17, and bringing the pinion 30 into the path of the rack 16 so as to be ready to impart the uniform movement to the bed after the reverse has been completed. i i

Each of the reversing wheels carries a which is keyed the shank 46 of a wrist pin 47, the latter being held in place in the beaiing by a nut 48 (Figs. 5 and 6). Upon the wrist pin is revolubly mounted a reversing roll 49, the latter beingheld in place by a guard head 50 on the wrist pin, which head confines the roll between ,itself and the face of the bearing 51. The guard head 50 isof segment shape, having an arc-shaped face 58 and a flat face 59, the segment being less than one half of a circle which is of the same diameter as the roll 49. The left-hand, ref versing wheel is provided with a similarly arranged wrist pin having a similar seginent-shaped guard head 50iL and carrying a reversing roll 49a. The reversingrolls cooperate with reversing shoes which are-set at an angleof 45O to the plane of movement of the bed; so that the wrist pins must` be located within the pitch line of the reversing wheels. i

The hanger 18 of the bed is formed, on its front face, and on the left-hand sideof its center, with a flange 52 disposed at an angle of 45o to the vertical. This flange is of a depth somewhat greater than the combined widths of the reversing roll 49 and guard head 50. Secured to the face of' the flange 52 is an effective shoe 53 o-f a width only equal to that of the roll 49; so thatthe shoe will be engaged by the reversing roll 49, but

vwill not be engaged'by the guard head 50.

Shoe, at the top end of which is a portion 55 of a width equal to the combined widths of the reversing roll 49 and guard head 5U, the remaining part 56 of the guard shoebe- `ing of a width only equal to that of the yguard head 50. Thus the effective shoe'53 can never be engaged by the guard head50,

while the narrow lower part 56 of theV guard shoe can never be engaged by the reversing `roll 49. The effective slioe 53 and `the guard `shoe are spaced apart by a distance equal to the diameter of the reversing roll 49, and

lli() llo form betweentliem what maybe termed the Y right-hand reversingchannel 57. At its lefthand end, and on its rear face,lthe hanger 18 is formed with flanges and provided with shoes similar to those above described, such shoes forming between them what' may be termed the left-hand* reversing channel 57a;

Referring nowtoFig: 3, this igureishoivs the parts just as thebed rack 17 is leaving the right-hand bed-driving pinion 341-; At this time the effective shoe53 will 'have arrived in contact with the reversing rollv 49, which Alatter will be just entering upward between such shoe andthe upper portion 55 of the guard" Shoe. Supposing the press'to be operating!` at speed, `thel momentum of the bed, which has just iinished its uniform movement towards the right, will crowd the effective shoe 53 against the neversingroll 49;' As the reversing'roll1-moves 'fronrthe pointv afto thefpoint b (Fig. 9), the bedwill be gradually retarded byl the reversing' roll, and finally stopped? when the'y point b is reached'. During this time the reversingroll travels upward and. then downward in the channel 57 between the effective shoe 53 and thelupper'portioni 55 of the guardi shoe, l As the reversing roll; passes` 'from the point- Z) tothe: point; c, it will operate upon the etfective shoe 53 tof forcel theybed toy the letn.

until', whenV the point c isv reached, the correct face speed for the uniform movement of the bed; will; have been attained. At this point thefleftlhand' bededrivingpihion 30 will be engagedfby the bed'rack 16; and willfthereafter drive the bedr f Y Then the'pressis being turned. over slowly byhand, the bedr will, ot course, have no such momentum as would complete its movement.. after theracln has left the bed-driving pinion., Intliat case,.the` reversing roll 49, by its engagement with the uppersportion 55 ot the gua-rdI shoe,.edects'the completion ofthe-movement. of the bed. n l The guard heads 501y and 50aof the wrist pinshave no effect during the ordinary running ot? the bed at speed, since, under these-f conditions, ther pressure is always between; the effective shoes andl theV reversing rolls, and these elliective shoes are not- Wide enough torbe contacted by the curved", faces 58 ot the guardl heads.L The `prime purpose of these guard headsis to prevent accidental movement o 't the bed out otitsproper position with respectto the reversingv rolls, to i prevent overrunnin'g off the hedv during y -startfin'g,.and toy enable thepress tothe turned fill overI iny ai reverse direction when desired. The manner: in; which the guard heads operate will; be understood: from the diagram,

"Fig ,9;.i In the-ull-line position; indicated `at v in this diagram-therevensing shoes, during theA uniform movement ofthe bed towardsthe right, are approaching'the Wrist pin- 47, which-is moving; upwardin its travel.

.llt'willI lee-observed thatv if lthe lower part T56 V` of the gua-rd shoe were of full heightyit would cllide; with.' the-reversing roll. However, this part of the guardi shoe beingaonly eta height equallfto the'width oftheguard head 50, the flat side 59 ofthe lattery can enter beneath the end of'- theshoe. The positionindicated by i: shows how the flat: side of the guard head thus enters beneath: the

shoe 56. In the positionv indicated. at lL,.the

vthe position indicated at c, which is the position Aat which the unitormf movement or' the bed starts, thecurvedfface 58 of the guard head is still in position to yhe engaged by the narroiv-`part 56 of the guard shoe, butis just about to leavefthe same in adownward direction.y i s s vThe only time when the bed would be otherwife outl of control is during the travel,- of the wrist pinsbetween the points-c to the points c. During this time, the bed is held in its proper relative position withrespect to the Wrist pins by the kguard heads, which are atthat time in a position. tobe engaged by the narrow portions 561 of the guard shoes. If it is desiredto turn the press in a` reverse direction, the bed is carried over` the space duri which the Wrist pins move trom the jL'iointsc to the points b by the driving action of the curve-d faces58 .of the guard heads upon ythe narrow portions56` of. the guard shoes.

the cutaway guard headsr of they present invention I am enabledy to reduce materially the cost of manufacturek of. atmovement of this character by obviating the necessity of extra rolls, specially curved-guard shoes,iand the like.. vAt thesame time I am enabled to retain the advantagesl of a. construction which. employs no movablel gates.,A s

y IaiavingA thus fully described myinvention, whatI claim as new, and? desire to secure by Letters Patentais: c 4 l. InI a; mechanical movement, a reciprocahle body, an effective,shoeand a guard slroe carried by said` body, vrotary means cooperating` with said yeffective shoe for Areversing-the movement of said body; anda guard head having a. curvedportion for cooperation witlrsaid guardshoe, said guard head Abeing reducedy at onelpart to" permit itsentry with respect to said 'guard shoe..

.In a mechanical movement, a. reciprocahle, body, an etfective shoe and a.V guard shoe Vcarried by said body, said Shoes being .disposedat an angle otlessthan. to the piane o'lireciprocation ot saidY body,; rotary means cooperating withv .said effective shoe for cooperation With said guard shoe, said guard head being reduced at one part to permit its entry with respect to said guard slice. i f i i 3. In a mechanical movement, a reciprocable body,an eifective shoe and a guard shoe carried by said body, said shoes being parallel and disposed at an angle of less than 90 `to the Vplane of reciprocation of said body, rotary means cooperating With said effective slice for reversing the movement of said body, and a guard head having a curved portion for cooperation With said guard shoe, said guard head being reduced at one part to permit its entry with respect to said guard shoe. i

4;. In a mechanical movement, a reciprocable body, anefective shoe and a guard shoe carried by said body, said guard shoe being of less height than said effective shoe, rotary `means cooperating with said effective shoe for reversing the movement of said body, and a guard head having a curved portion for cooperation with said guard shoe, said guard V-head being reduced at oneV part to permit its entry guard shoe.

5, In al mechanical movement, a reciprocable body, an effective shoe and a guard shoe carried by said body, said shoes being disposed at an angle of less than 90 to the plane oi" reciprocation of said body and said guard shoe being of less height than said efective shoe, rotary means cooperating With said edective shoe for reversing the movement of said body, and a guard-head havwith respect to said ing a curved portion for cooperation with said guard shoe, said guard head being reduced at one part to permit vits entry with respect to said guard shoe.

(. In a mechanical movement, a recipro- `cable body, aneifective shoe carriedby said i lary means cooperating With said effective shoe and with the higher portion of said guard shoe` for reversing the `movement of said body, and a guard head having a curved portion for cooperation with the narrow portion ofsaid guard shoe, said guard head being reduced at one partto permit its entry` with respect to said guard shoe. n

` fr'. In a mechanical movein-ent,.a` reciprocable body, an effective shoe anda guard shoev carried by said body, said shoesbeing disposed at an angle otless than 90 `to the plane of reciprocation of saidbody, a reversing Wheel, and a Wristpin carried by saidV wheeland vcooperating With said effective shoe `to reverse the movement of said body, said Wrist pin being provided with a` guard head having a curved portion for cooperation with said` guard Ishoe and being reduced at one part to permit its entry with respect to said guard shoe. i i f 8. In a mechanical movement, a reciprocable body, an effective shoe carried by said body and disposed at an angle of less than 90 to the plane of reciprocation of said body, a guard shoe carried by said body and disposed parallel with said effective shoe, said guard shoe having a portion of substantially equal height to that of said eifective shoe, `and `lia-ving a portion of less height than'that of said effective shoe, a reversing Wheel, and a Wrist pin cooperating with said .effective shoe and the higher portion of said guard shoe for reversing the movement of said body, said Wrist pin being formed with a guard head having af curved portion for cooperation with the narrow portion of said guard. shoe, said guard head beingreduced at one partto permit its entry `with respect to said guard shoe.l i v 9. Ina mechanical movement,` a reciprocable body, a reversing Wheel, a reversing member carried bysaid Wheel, a guard head carried by said wheel and disposed concentrically `with said reversing member, said guard head being reduced at one part, fan etfective reversing shoe for cooperationwith said reversing member, said .shoe being carried by said body, and a guard shoe carried by said body `for cooperation With said guard head, said guard shoe being disposed out ot the path of said reversing member. l

10. In a mechanical movement, a recipro-` cable body, a reversing Wheel, a` reversing member carried by said Wheel, a guard head carried by saidlwheel and disposed concentrically` With said reversing member, said guard head being reduced-at one part, an effective reversing shoe for cooperation ywith said reversing member, said shoe being carried by said body and disposed at `ari-angle of less than 90D to the plane of reciprocation ofthe latta-erfand a guard shoe carried by said body for cooperation `with said guard head, said guard shoe being'disposed out of the path 0f saidreversing member. g

ll; In a mechanical movement, a reciprocable body, a reversing Wheel, a `reversing member carried by Ysaid Wheel, a guard head carried by said Wheelandfdisposed concentrically. with' said reversing. member, 'said guardA head being reduced `at one part, an

effective reversing shoe for 4cooperation With Y `said reversingmember, said shoe "beingucarried by said body and `disposedfat an angle of lessl than 90 to the plane of reciprocation of the latter, and a guardshoel` carried by said bodyfor cooperationivith said guard head, said effective shoe being disposed out of the' pathof said guard head,` and said i guard shoe being disposed out of the path of said reversing member.

l2. In a mechanical movement, a reciprocable body, a reversing Wheel, a reversing member carried by said Wheel, a guard head carried by said Whe-e1 and disposed coneenq trieally with said reversing member, said guard head being reduced at one part, an eieotive reversing shoe for rcooperation With said reversing member, said shoe being oarried by said body and disposed at an angle of less than 90 to the plane of reciprocation of the latter, and a guard shoe carried byl i said body, said guard shoe having a portion for cooperation With said reversing member and a second portion for cooperation With said guard head, said eective shoe being dispos-ed out of the path of said guard head, and said second portion of said guard shoe being disposed ourl of the path ofsaid ref 20 versing member.

FRANK R. BELLUCHE.

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