US746741A - Bed-movement. - Google Patents

Description

EATE-NTED EEG'. i5, 1903.

@.EEEAE. EEE MOVEMENT. Y @EPPLIGATION FILED MAR. 28, 1901.

N0 MODEL.

G. P. READ.

' n nu BED MOVEMENT. APPLIGATION FILED MAAR. 28, 1901.

No MODEL.

ATENTED DEG. 15, 1903.

G. P. READ.

BBD MOVEMENT. APPLIUTION FILED MAR. 28, 1901.

4 SHEETS-SHEET s.

wtlll l lllli me spams percus co., mmuumm wxsnmcow, u. c.

' PATBN'TED DB0. 15, 190s.

G. E. READ. BED MOVEMENT. APPLIGATION FILED MAB. 2a, 1901.v

4 SHEETS-SHEET 4.

Ho MODEL.

Ive. 746,741.

NIIED STATES? Patented-December 15, 1903. i

PATENT EEICE.

GEORGE E. READ., or NEW 5 BED-MVEM ENT.

SPECIFICATION forming parser Letters :ear-.ent No. 746,741, daten December 15, 190e. plplicatin liled March 28, 1901. Serial No. 53,175. (No model.)

To @ZZ whom, it may concern):

Be it known that I, GEORGE F. READ, a citizen of the United States, residing at New York, county of Kings, and State of New York, have invented certain new and useful Improvements in Bed-Movements, fully described and represented in the following speciflcation and the accompanying drawings,

' forming a part of the same.

This invention relates to certain improvements in bedmovements.

In some types of bed-and-cylinder printingmachines the bed is reciprocated by means of a rotating gear, which engages alternately with upper and iower racks carried by the bed. The bed is provided with two pairs of abntments, one pair being located at each end of the bed, and the driving-gear carries a Wrist-pin which, as the bed Vis finishing its stroke in either. direction and as the gear is running out of mesh with one rack preparatory to running into mesh with the other, engages between the abutments, brings the bed to a stop, and reverses its movement. In machines such as have been referred to, the wrist-pin which is carried by the drivinggear is usually provided with a circular roll or bowl, the face of which does not correspond in shape with the face of the abutment. The result of this construction is that the vbowl has vbut a slight bearing-surface against the abutment, especially when the abutment is straight, and the excessive strain to which these parts are subjected in checking the movement of the heavy bed causes them to wear, so that constant renewal is necessary.

It is one ot the objects of this invention to produce a device for checking the movement of beds, such as have been referred to, in which the engaging part shall be so con sti-noted as to provide a large bearing-surface, thus reducing the excessive wear heretofore referred to.

A further object of the invention is to produce a mechanism for checking and reversing the movement of reciprocating beds in which abutinents and engaging parts are employed, the said engaging part having a face or faces which correspond in outline with [he face or faces ofthe abutments, and being so operated that its face or faces will be parallel with the face or faces of the abutments at the time when the two come into engagement.

With these and other objects in view the invention consists in certain constructions and in certain parts, improvements, and cernbinations, as will be hereinafter described and then specifically pointed out in the claims hereunto appended.

In the accompanying drawings, which form a part of this specification, and in which like characters of reference indicate the same parts, Figure l is a sectional side elevation of so much of a printing-machine as is necessary to an understanding of the invention. Fig. 2 is Va vertical cross-section of the machine shown in Fig. 1. Figs. 3 and 4 are plan views illustrating certain details of the -construction. Figs. 5, 6, 7, 8', 9 are diagrammatic views illustrating the operation of the niachine, and Fig. l0 is a detail sectional elevation illustrating the construction of the driving-gear and the parts immediately connected therewith'.

Referring to the drawings, which illustrate one embodiment of the invention, l indicates a frame of a printing-machine, which maybe of any usual or desired construction. The frame is provided Withlways 2, which operate to support a reciprocating bed of any usual or desired construction. The means for're'ciprocating the bed may be varied within wide limits. In the preferred form of the construction, however, the bed is provided with a rack 4e, which is secured to its under side, and a rack 5, which is supported on or secured to a rack-frame 6, which is also secured to the under side of the bed. The rack 5 will preferably be integral with the frame, as shown, and the frame will be formed with a way or groove on its under side which engages a guideway or runway 7, suitably supported in the frame. The purpose of this guide or run Way is to assist in supporting the rack and frame.

In the construction shown a rotating driver is employed for reciprocating the bed, said driver-consisting of a gear 8, which is adapted to engage one of the racks to drive the bed in one direction and the other rack to ICO drive the bed in the opposite direction. In the preferred form of the construction the alternate engagement of the gear 8 with the racks will be effected by giving the gear a rising-and-falling movement. To this end the gear is mounted on a stud 9, which is carried on a slide 10, said slide being guided in its vertical movement by ways l1, suitably mounted in the frame. The lower end of this slide is provided with a bowl 12, which engages a suitably-formed groove in a cam 13, mounted on a shaft 14, supported in suitable bearings in the frame. While this construction for moving the gear is a preferred one, other constructions may be substituted therefor.

The gear 8 may be driven in any suitable manner. In the construction shown it is driven bya pinion 15, mounted on a shaft 16, which shaft may, if desired, be the powershaft of the machine and be provided with a pulley 17, by which it is driven. In the construction shown the shaft 16 is further provided with a gear 18, which meshes with a gear 19, mounted on a stud 20, suitably supported in the frame. Secured to the gear 19, so as to move therewith, is a pinion 21, which meshes with a gear 22, mounted on the shaft 14, before described as the shaft carrying the slide-operating cam 13. It may be here remarked that the gearing just described is so proportioned that the shaft 14 makes one revolution for each complete reciprocation of the bed. The gear 18 also serves through an intermediate 23 to drive a gear 24, which is secured to a shaft 25, which supports the cylinder 26, said shaft being mounted in bearings of any suitable description in the frame. In the construction described the gear 8 is first caused to engage with one of the racks 4 5, thus causing the bed to move in one direction, these racks being of such a length as to cause the gear to drive the bed during the time in which it is to receive a uniform motion. At the time when the bed completes its uniform motion, which is at about the time when the bed is finishing its stroke in either direction, the gear runs out of mesh with its cooperating rack, and the stopping and reversing mechanism then assumes control of the bed and retains this control until the bed has completed its stroke, is reversed, and started in the opposite direction.

The details of the stopping and reversing mechanism may be varied within wide limits. In the construction shown the bed is provided at each of its ends with a pair of abutments, the abutments at one end of the bed being marked 27 28 and the abutments at the other end of the bed 29 30. These abutments will preferably be formed with straight or right line operating-faces, as shown, although the operating-faces of the abutments might be curved, if desired. Where, as in the preferred construction, a pair of abutments at each end of the bed is employed, one of the abutments of each pair will preferably be made movable, so as to permit the coperating part of the stoppingv mechanism, to be hereinafter described, to come into engagement With the abutment, although constructions are possible and within the invention in which movable abutments are not used.

The means for moving the abutments when movable abutments are employed may be of any suitable description. As shown, the abutment 28 is carried on arms 3l, which are pivotally mounted in the frame, and said abutment has extending therefrom an arm 32, which preferably carries a bowl 33. Similarly, the abutment 30, which is also a movable abutment, is carried on arms 34, pivotally mounted in the frame, and has extending from it an arm 35, which is preferably provided with a bowl 36. Suitable cams are provided with which the bowls engage to move the abutments at proper times. In the construction shown two such cams (see Fig. 2) 37 38 are employed, the cam 37 cooperating with the bowl 33 and the cam 38 with the bowl 36. The cam 37 is located above the cam 38, and the bowl 36, which is carried by the arm 35, projects downward, While the bowl 33, which is carried by the arm 3l, projects upward.

The means which coperate with the abut-A ments to check and `bring the bed to a stop consists of an engaging part which moves in synchronism with the driving-gear 8 and is preferably carried by said driving-gear. In the preferred form of the construction this part will consist of a block 39, the faces of which correspond in shape to the operatingfaces of the abutments. Inasmuch as in the present construction the operating-faces of the abutments are straight the block is made rectangular in shape. As shown, the block is preferably square, in order to provide additional wearing-faces, which may be utilized by giving the block a quarter-turn. In the construction shown this block is mounted on a stud 40, which is integral with a plate 41, secured to the gear 8 in any suitable manner, as by a screw 42. provided with a perforation through which the' stud 9 passes. The block 39 is so mounted on the stud 40 as to be capacitated to have a movement independent of the rotating movement which it has in synchronism with the driver, and means is preferably provided for controlling the movement of the block, so that at the time the block comes into engagement with the abutments its operating-faces will be parallel to the operating-faces of the abutments.

The means for controlling the movement of the block may be of any suitable description. In the construction shown, however, the block carries apinion 44, which,asshown,is'integral with the block. This pinion 44 is in mesh with an intermediate 45, mounted on a bolt or stud 46, passing through the plate 4l and This plate is preferably IOO the driving-gear 8, so as to assist in holdingi them together. This intermediate is in mesh with the stationary gear 47, which is mounted on or, as shown, formed on the stud 9, which supports the driving-gear S. This stud 9, it may be remarked, is so mounted as to prevent any possibility of its turning. While this may be accomplished in any suitable manner, in the construction shown a pin 48 lis provided which extends into the siide 10 and locks the stud in position with respect to this slide. As the driver rotates, therefore, it will he seen that the block will be given an independent movement, which is produced and controlled by the train of gears referred to, and these gears are so proportioned that at the time when the block comes into engagement with a pair of abutments its operatingfaces will be parallel with the operating-faces of the abutments, and this parallelism will continue during the time the parts are in engagement. This construction provides wide bearing-surfaces between'the block and abutments, and thus greatly reduces the wear incident to the engagement of these parts.

The operation of the construction is as follows: The gear 8 is preferably so proportioned as to make three complete revolutions for each complete reciprocation of the bed. Re ferring to the diagram illustrated in Fig. 5, the gear 8 is shown in engagement with the lower rack 5 and the bed is nishing its stroke in the direction indicated by the arrow-that is, to the right of the observer as the construction is shown in Fig. l. inasmuch as the gear 8 has not passed out of mesh with the rack 5 the block 39 has not come into engagement with the operating-face of the abutment 29, but it will be seen that the operatingface of the block is parallel with the operating-face of the abutment. As the bed .continues its movement the gear 8 passes out of engagement with the rack 5, and just as the gear S is about to pass out of engagement with the rack 5 theblock 39 comes into en gagement with the operating-face of the abutment 29, this position of the parts being shown in Fig. 6. At this time the movalole'aloutment 30 has been operated by its cam 38, so as to pass in behind the block 39, the position of these parts being clearly shown in Fig. 3. As the gear 8 passes out of engagement with the rack 5 the block 39 assumes control of the bed. It the bed is running at a high speed, the abutment will by the momentum of the bed be forced up against the block 39 and the block will operate to check the movement of the bed. It', however, the hed is running at a low speed, the block operating against the movable abutment 30 will continue the move-A ment of the bed.

Fig. 8 represents the position of the partsl just at the instant when the bed is broughtto a standstill and is about to reverse. In

Fig.4 9 the parts are represented at the time when the block and abutment have `elected the reversal-of the bed and brought it up to the speed of the driving-gear 8, the said gear having in the meantime been moved up by its cam'so as to run into engagement with the rack 4. `As the bed begins to move ahead under the control of the gear and rack. thev cam 3S swings the movable abutmentout of.

the planeof the block, so as to permit it to leave the abutment 29, this position of the parts being that shown in Fig. Lt. The abutment will remain in its open position until the reciprocation of the -bed is completed and the parts again reach the position shown in Figs. 3 and 6. When, however, the bed has reached that point in its movement in the direction indicated by the arrow in Fig. 4 at which the block 39 comes into engagement with the abutment 27, the roller 33 on the abutment 28 will have come into contact with its cam, and it will be swung in behind the block.V At the time this happens the block and the abutment 27 assume control of the bed, the gear running out of mesh with the rack 4, and the reversal of the bed takes place, the operation being exactly the same as that before described.

The function of the movable abutments when the bed is running at the speed it ordinarily has when it is in operation is simply to hold-the block and the stationary abutments in firm engagement and prevent anyy jumping. The momentum of the bed might under some circumstances be depended uponv to effect the engagement referred to, and under such circumstances it is obvious that the movable abutments might be omitted.

Nhiie the construction which has just been described is a preferred embodiment of the invention, it is to be understood that it is not to be limited to such construction, but that many changes may be made therein without departing from the invention.

What is claimed is- Y l. The combination with a reciprocating hed, of abutments carried by the bed, a rotating driver, a part carried by the driver but capacitated to have a movement independent of the rotatingmovement of the driver, 'said part havin g a face which corresponds in shape to the operating-faces of the abutments andbeing arranged to engage an abutment as the bed is nishing its stroke in each direction,` and means for controlling the independent movement ofsaid part so that its face will be parallel with the abutment at the time when the two come into engagement, substantially as described.

' l2. The combination with a reciprocating bed, of pairs or abutments carriedby the bed and located at each end thereof, a rotating driver, a part carried by the driver but capacitated to have a movement independent of the rotating movement of the driver, said part having faces which correspond in shape to the operating-faces of the abutments and being arranged to engage a pair of abutments IIS as the bed is finishing its stroke in each direction, and means for controlling the independent movement of said part so that its faces will be parallel to the operating-faces of the pair of abutments at the time when the part and abutments come into contact, substantially as described.

3. The combination with a` reciprocating bed,of pairs of abutments carried by the bed, an abutment of each pair being movable, a rotating driver, a part moving in synchronism with the driver and arranged to engage a pair of abutments as the bed is finishing its stroke in each direction, said part having faces which correspond in shape With the operating-faces of the abutments, and means for moving said movable abutments out of and into the plane of movement of the part, substantially as described.

4. The combination with a reciprocating bed,of` pairs of abutments carried by the bed, an abutment of each pair being movable, a rotating driver, a part carried by the driver and arranged to engage a pair of abutments as the bed is finishing its stroke in each direction, said part having faces which correspond in shape with the operating-faces of the abutments, and means for moving said movable abutments out of and into the plane of movement of the part, substantially as described.

5. The combination with a reciprocating bed, of pairs of abutments carried by the bed, an abutment of each pair being movable, a rotating driver, a part moving in synchronism With the driver but capacitated to have a movement independent of the rotating movement of the driver, said part having l faces which correspond in shape to the operating-faces of the abutments and being arranged to engage a pair of abutments as the bed is finishing its stroke in each direction, means forv controlling the independent movement of said part, so that its said faces Will be parallel with the operating-faces of the abutments at the time When the part and the abutments come into contact and means for moving the movable abutments into and out of the plane of movement of the part, substantially as described.

6. The combination With a reciprocating bed, of pairs of abutments carried by the bed, an abutment of each pair being movable, a rotating driver, a part carried by the driver but capacitated to have a movement independent of the rotating movement of the driver, said part having faces which correspend in shape to the operating-faces of the abutments and being arranged to engage a pair of abutments as the bed is nishing its stroke in each direction, means -for controlling the independent movement of said part, so that its said faces Will be parallel With the operating-faces of the pair of abutments at the time When the part and said pair of abutments come into contact, and means for moving the movable abutments into and out of the plane of movement of the part, substantially as described.

7. The combination with a reciprocating bed, of abutments carried thereby, said abutments having right-line operating-faces, a rotating driver, and a block moving in synchronism with the driver and arranged to engage an abutment as the bed is finishing its stroke in each direction, said block having right-line faces, substantially as described.

8. The combination with a reciprocating bed, of abutments carried thereby, said abutments having right-line operating-faces, a rotating driver, and a block carried by the driver and arranged' to engage an abutment as the bed, is finishing its stroke in each direction, said block having right-line faces, substantially as described.

9. The combination with a reciprocating bed, of abutments carried thereby, said abutments having right-line operating-faces, a rotating driver, a block movinginsynchronism with the driver but capacitated to have a movement independent of the rotating movement of the driver, said block having rightline faces and being arranged to engage an abutment as the bed is finishing its stroke in each direction, and means for controlling the independent movement of the block so that its face will be parallel with the face of the abutment at the time When the two come into engagement, substantially as described.

lO. The combination with a reciprocating bed, of abutments carried thereby, said abutments having right-line operating-faces, a rotating driver, a block carried by the driver but capacitated tohaveamovementindependent of the rotating movement of the driver, said block having right-line faces and being arranged to engage an abutment as the bed is finishing its stroke in each direction, and means for controlling the independent movement of the block so that its face will be parallel With the face of the abutment at the time when the two come into engagement, substantially as described.

ll. The combination with a reciprocating bed, of pairs of abutments carried thereby, an abutment of each pair being movable, a rotating driver, a block moving in synchronism with the driver and arranged to engage a pair of abutmen'ts as the bed is finishing its stroke in each direction, said block having right-line faces, and means for moving the movable abutments into and out of the plane of movement of the block, substantially as described.

12. The combination with a reciprocating bed, of pairs of abutments carried thereby, said abutments having right-line operatingfaces, and an abutment of each pair being movable, a rotating driver, a block moving in synchronism therewith but capacitated to have a movement which is independent of its IOG IIC

to engage apair of abutments as the bed is 1infaces Will be parallel with the faces of thev pair of abutments at the time when the block and abutments come into engagement, and means for moving the movable abutments into and ont of the plane of movement of the block, substantially as described.

13. The combination with a reciprocating bed,of abutments carried thereby and located at each end thereof, a rotating driver, a part rotating in synchronism with the driver but capacitated to have a movement independent -of its rotating movement, said part having a face which corresponds in shape to the operating-faces of the abutments and being arranged to engagean abutment as the bed is finishing its stroke in each direction, and

'gears for controlling the independent movement of the part so that its face will be parallel with the face of the abutment at the time when the two come into engagement, substantially as described. l

14. The combination with a reciprocating bedfabutments carried thereby and located at each end thereof, a rotating driver, a block carried by the driver and having faces which correspond in shape to the operating-faces of the abutments, said block being mounted to have a movement independent of its rotating movement, and gears for controlling the movement of the block, substantially as described.

15. The combination with a reciprocating bed,of abutments carried therebyand located at each end thereof, racks carried by the bed, a rotating driving-gear, means for causing the gear to alternately engage the racks, a block carried by the gear, said block having faces which correspond to the operatingfaces of the abutments and being arranged to engage an abutment as the bed is finishing its.

stroke in each direction, a gear on the block, a stationary gear, the center of which substantially corresponds to the axis of the driving-gear, and an intermediate gear, whereby the block is held with its face parallel to the face of the abutment with which it engages, substantially as described.

16. The combination with a reciprocating bed,of abutments carriedthereby and located at each end thereof, said abutments having right-line operating-faces, racks carried by the bed, a rotating driving-gear, means for causing the gear to alternately engage the racks, a vblock carried by the gear, said block having right-line faces which correspond to the operating-faces of theabutments and being arranged to engage an abutment as the bed is nishing its stroke in each direction, a gear on the block, a stationary gear, the center of which substantially corresponds to the axis of the driving-gear, and an intermediate gear, whereby the .block is held with its operating-face parallel to the face of the abutnient with which it engages, substantially as described. y

17. The combination with a reciprocating bed,of a pair of abutments carried thereby and located at each end thereof, said abutments having right-line operating-faces, racks carried by the bed, a rotating driving-gear,means Y for causing the gear to alternately engage the racks, a block carried by the gear, said block having right-line faces which correspond to the operating-faces of the abutmen ts and being arranged to engage a pair Ofabutments as the bed is iinishing its stroke in each direction, a gear o'n the block, a stationary gear, the center of which substantially corresponds to the axis of the driving-gear, and an intermediate gear, Whereby the block is held with its operating-faces parallel to the faces of the pair of abutments with which it engages, su bstantially as described.

18. The combination with a reciprocating bed, of abutments carried thereby and located at each end therof, upper and lower racks carried by the bed, a rotating driving-gear,means for moving the driving-gear in a straight line to cause it to engage first one ofthe racks and then the other, a block carried by the driving-gear and arranged to engage an abutnient as the bed is finishing its stroke in each direction, said block having faces which correspond in shape with the operating-faces of the abut-ments, a stationary gear, the center of which substantially corresponds to the axis of the driving-gear, and gearing driven by said stationary gear for rotating the block so as to bring its operating-face into parallelism with the face of the abutment with which it engages, substantially as described.

19. The combination with a reciprocating bed, of abutments carried thereby and located at each end thereof, said abutments having right-line operating-faces, upper and lower racks carried by the bed, a rotating drivinggear, means for moving the driving-gear in a straight line to canse it to engage first one rack and then the other, a block carried by the driving-gear, said block having rightline operating-faces which correspond to the operating-faces of the abutments and being arranged to engage an abutment as the bed is finishing its stroke in each direction, a stationary gear, the centerA of which substantially corresponds to the axis of the drivinggear, and gearing driven by said stationary ICO vIlo

gear for rotating the block so as to bring its ments having right-line operating-faces, up-

per and lower racks carried bythe bed, aslide, a rotating driving-gear mounted on the slide, means for moving the slide to cause the driving-gear to engage with the upper and lower racks, a block carried by the driving-gear and In testimony whereof I havel hereunto set having right-line operating-faces, a staionmy hand in the presence of two subscribing ary gear, the center of which substantially witnesses.

corresponds to the axis of the rotating driV- GEORGE F. READ. 5 ing-gear, and intermediate gearing between Witnesses: said stationary gear and the block, substan- F. W. H. CRANE,

tially as described. L. ROEHM.

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