US806923A

US806923A - Feeding apparatus for picture-frame-puttying machines, &c.

Info

Publication number: US806923A
Application number: US18259803A
Authority: US
Inventors: Charles E Sandstrom
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-11-25
Filing date: 1903-11-25
Publication date: 1905-12-12
Anticipated expiration: 1922-12-12

Description

No. 806,923. PATENTED DEC. 12, 1905. c. E. SANDSTROM.

FEEDING APPARATUS FOR PICTURE FRAME PUTTYING MACHINES, 8w.

APPLICATION FILED NOV. 25, 1903.

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f zyerz far: CZa rZeJ 6'. SaRZdMm/ No. 806,923- PATENTED DEC. 12, 1905. G. E. SANDSTROM.

FEEDING APPARATUS FOR PICTURE FRAME PUTTYING MACHINES,- 8m. APPLICATION FILED nomza, 1903.

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. ture-frame 23 located thereon.

UNITED STATES PATENT OFFICE.

FEEDING APPARATUS FOR PICTURE -FRAME-PUTTYING MACHINES, 81.0.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed November 25,1903. Serial No. 182,598.

To all whom it may concern.-

Be it known that LCHARLns E. SANDsTRoM, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Feeding Apparatus for Picture-Frame-Puttying Machines, &c., ofwhich the following is a specification.

This invention relates to an apparatus or mechanism for feeding plastic substances or compositions to machines working in or producing articles employing or made from such substances or compositions, and is particularly adapted for use with machines for puttying and ornamenting picture-frames.

The object of the invention generally is to provide a feeding mechanism controlled in its operation by the movement of the machine with which it is associated.

The above and other objects of the invention are fully set forth in the accompanying description and particularly designated in the appended claims.

In the drawings, Figure 1 is a side elevation of the feeding apparatus of my invention shown in connection with a picture-frameputtying machine. Fig. 2 is a transverse section taken on the line 2 2 of Fig. 5 and showing the feeding-rolls, roll-cleaners, and cut-01f mechanism. Fig. 3 is a detail of one of the trips for actuating the cut-ofi. Fig. 4: is a detail of one of the cut-off guides. Fig. 5 is a bottom view of the feeding mechanism or apparatus. Fig. 6 is a plan of the feeding apparatus and the puttying-machine shown in Fig. 1. Fig. 7 is a detail of the clutch-controlling mechanism. Fig. 8 is a plan of a modification of the hopper containing the composition or putty, and Fig. 9 is a section on the line 9 9 of Fig. 8.

The feeding apparatus herein described is particularly designed for use with the pictureframe-puttying machine shown and described in an application for patent filed by me September 12, 1903, Serial No. 172,880. It is to be understood, however, that the invention is applicable to other pictu're-frame-puttying machines and also to other machines or apparatus in the use of which means are employed or required for feeding plastics thereto. The machine shown in the said application comprises, generally, a suitable frame or support 20, provided with side rails 21, upon which is mounted and adapted to reciprocate a worksupporting bed 22, designed to carry the pic- A die-roll 24L,

hand-wheels 27 is provided with a suitable die 27 to impress its design upon the putty laid upon the picture-frame. Motion may be come municated to the bed to reciprocate the same through the medium of any suitable mechanism,such as the shaft 28, journaled on the frame 20 and having pinions (not shown) which mesh with rack-bars 29 carried bythe bed. The shaft 28 is driven through the medium of a gear 30, fixed thereon and deriving motion from a pinion 31, keyed to a shaft 32, journaled on the frame and having fixed thereon a drive-wheel 33, to which movement may be transmitted by belts 33 for driving the shaft 32 in opposite directions to advance and then reverse the movement of the bed and bring it back to its origi-, nal position after each puttying operation. Idle pulleys 34:, loose on the shaft 32 and at opposite sides of the drive-pulley 33, are prov vided to receive the belts when moved off the said drive-pulley in the usual manner. The belt-shippers for moving the belts onto and off of the active pulley 33 to arrest the bed at either end of its reciprocation may be of any suitable character; but preferably they are automatically controlled by trips 34 and 34:", located at suitable points on the bed and each designed to engage a tappet 35 associated therewith to move the belt-shipper and throw the active belt onto its associated idle pulley. Manually-operated levers 35, which may be fixed to the spindles 36, (shown in dotted lines in Fig. 1,) to which the tappets 35 are secured, may be employed to operate the belt-shippers, which are carried by slide-rods 36*, supported by brackets 36 whenever desired and also to start the machine to move the bed in either direction. Connecting-gearing of any suitable character, as 37, may be employed for communicating motion to the die-roll 24, and from the foregoing it will be understood that the bed has imparted thereto a reciprocating movement, while the die-roll is oscillated or partially or wholly rotated in opposite directions as the bed moves back and forth.

In the use of the machine described the bed is moved to its initial position-that is to say,- the extreme right-hand end of the machine looking at Figs. 1 and 6and the pictureframe or other article to be puttied or decorated placed thereon. The machine is then started through the medium of the proper hand-lever imparting motion to the die-roll and moving the bed along under the said roll. Putty having been laid on the picture-frame, as the latter moves under the die-roll the de' sign of the roll is impressed upon the putty.

As soon as the frame has passed from under the die-roll the trip 34 engages the tappet associated therewith, unshipping the belt and arresting the bed. The frame is then removed and reverse movement imparted to the bed, this being accomplished through the medium of the other hand-lever. As soon as the bed reaches its initial position the trip 34 engages its associated tappet, again unshipping the clutch and arresting movement of the parts.

The present invention has reference to means for feeding the plastic material or putty to the picture-frame or other article to be puttied or decorated and is designed to provide a mechanism for this purpose which is preferably under the control of the machine with which it is associated. Such mechanism may be of any suitable character adapted to attain the desired end.

In the present embodiment of the invention I provide a suitable tank or reservoir designed to contain the putty to be laid on the frame, means for feeding the material to the frame as the latter is carried thereunder, and means for arresting the feeding means as soon as the frame has passed from beneath the feeding device.

To this end the invention consists generally of a suitable tank for containing the putty or other plastic composition and located at some convenient position on the frame. A suitable feeding mechanism, such as a pair of rolls, is provided and also a cut-off located at the outlet of the feeding device and beneath the rolls and designed to sever the sheet of material fed from the hopper by the rolls. Means are also included for arresting the movement of the rolls and for operating the cut-off at the necessary point in the operation of the machine.

The hopper 38, which may be made of metal, wood, or other suitable material, is preferably locatedadjacent the die-roll and transversely ofthe machine, preferably extending the entire width of the bed. The hopper may be supported in position by brackets 39 bolted thereto and to the top of the standards 25. Located at the outlet of the tank is a pair of rolls 4O 41, adapted-to be driven in opposite directions and toward each other to deliver the putty from the hopper. One of the rolls, as 40, may be provided with a flange 42 at each end, overlapping the adjacent edge of the other roll, as seen in Figs. 2 and 5, and designed to prevent the putty escaping past the ends of the rolls. The lower edges of the ends of the hopper 38 may be shaped to conform to the contour of therolls for the same reason.' The rolls 40 41 are adapted to be adjusted relatively to each other to vary the thickness of the putty delivered between the same, and this adjustment may be accomplished in any suitable manner. In the present construction one of the rolls, as 40, is fixed on a shaft 43, journaled at its opposite ends on supports 44, which are secured to the side rails of the frame, as by cap-screws 45. Adjustably mounted on the supports 44 are brackets 46, upon which the shaft 47 of the roll 41 is journaled. In order to secure the brackets 46 in their adjusted position, they are provided with slots 48, (shown in dotted lines in Figs. 1 and 2,) through which pass cap-screws 49, screwing into the supports 44, or they may be secured in any other suitable manner. When it is desired to adjust the roll 41, the screws 49 are nnloosened and the.

brackets moved on the supports until the desired adjustment is attained. Screws 50, passing through lugs 51 on the brackets 46 and engaging the ends of the supports 44, are provided for the purpose of sliding the brackets to adjust the roll Movement may be imparted to the rolls through the medium of a shaft 52, which is journaled on the brackets 46 and has keyed thereto a pinion 58, meshing with a spur-gear 54, fixed on the shaft 47 of the roll 41. The shaft 47 is also provided with a gear 55, meshing with a corresponding gear 56, fixed on the other roll-shaft 43 and whereby the rolls are driven in opposite directions.

Loosely journaled on the shaft 52 is a drive-wheel 57, which may be driven by a belt 58 or other means and is adapted to be automatically coupled to or uncoupled from the shaft 52 to start and stop the feed-rolls. For this purpose the drive-wheel 57 may be made to slide longitudinally of the shaft and is provided with a clutch member 59, adapted to cooperate with a clutch member 60, fixed on the shaft 52. Any suitable means may be provided for throwing the clutch into and out of operation to start and stop the rolls, and such means may be controlled by suitable mechanism operated by the machine. In carrying out this feature of the invention there is secured to the upper face of the bed a cam 61, which is preferably in the form of a bar 62, having its front end inclined or curved inwardly and rearwardly, such cam-bar being located at and parallel with the side of the bed adjacent the belt-pulley. Pivoted to a bracket 63, bolted to the side rail nearest the clutch, is a lever 64, provided with a yoke at its upper end, which straddles the hub of the belt-pulley and is provided with lugs 66, extending into an annular groove 67 in the said hub. Pivoted at 68 to the opposite end of the lever 64 is a longitudinally-slidable arm 69, having fixed to its free end a downwardly-extending finger 70, normally located in the path of the cam 61. When the reciprocating bed 22 is moved from right to left looking at Fig. 6, the cam 61 engages the finger 70 at the end of the arm 69, moving the said arm inwardly, and thereby throwing the clutch members 59 and 60 into engagement, imparting motion to the shaft 52, and through the medium of the gearing heretofore described operating the feed-rolls. A second cam 71 is mounted on the reciprocating bed and located at the rear of the cam 61 and in such position as to move the arm 69 in the opposite direction to unship the clutch, both the shipping and unshipping operations being performed on the advance movement of the bed. The cam 71 may be-formed by inclining or curving the forward end of a bar 72, which is also parallel with the side of the machine, reversely to the cam 61. Assuming the cam 61 to have acted on the finger 70, the

latter is at the proper time engaged by the cam 71 to throw the arm outwardly and unship the clutch. The cam 61is so positioned as to engage the finger and ship the clutch at or just before the forward end of the article to be puttied enters beneath the feed-rolls, and the cam 71 is so positioned that the clutch is unshipped just after the rear end of the frame passes from under the feed-rolls. The cams 61 and 71 are constructed or disposed in such manner that the clutch-shipping mechanism is not affected on the retraction of the bed, and while I have described such cams as of the specific form illustrated in the drawings 1 do not limit myself in this respect, but may construct and arrange them in any other manner necessary to efiiect the desired operation. In order to avoid any possible interference of the bar 72 with the finger 7 O on the retraction of the bed, the rear end of the bar 72 may be inclined, as shown, the bar 72 passing along the outer face of the finger. On the retraction of the bed the finger 70 is in the path of the bar 62; but the rear end of .the latter bar is inclined on its upper face, as

at 73*, and as the arm is mounted on a horizontal pivot the finger will slide up on and along the upper face of the cam-bar, dropping ofi' the front end of the bar 62 as the latter passes the finger. This construction avoids shifting of the arm on the retraction of'the bed, it being understood that the rolls are operated only on the advance of the bed.

Preferably associated with the mechanism heretofore described is a cut-0E designed to sever the sheet of plastic composition laid on the frame by the feed-rolls. This cut-off, which is preferably in the form of a sliding knife, is supported underneath the feedingrolls and operated through the medium of suitable mechanism mounted upon the reciprocating bed and now to be described. Located at opposite ends of the rolls 40 4:1 and bolted to the supports 44 through the medium of flanges 74 are guides 75, consisting of parallel and horizontal suitably-spaced plates, which, as shown in Fig. 2, may be connected at the ends. Seated at each end between the guide-plates is the cut-off 76 referred to. This cut-off is'normally open or retracted from under 'the space between the feed-rolls, but is advanced to sever the sheet of plastic composition fed by the rolls after the frame has passed from under the feedingrolls. This knife may be moved back and forth by any suitable mechanism, as by trips 77, mounted on the reciprocating bed and adapted to engage the opposite ends of the cut-off. The trips 77 consist of the springarms 78, bolted at one end to the reciprocat ing bed and provided at the free end with up-' turned fingers 79, which engage the opposite ends of the cut-off and move the same forward to sever the sheet of putty. Secured to the under side of the lower guide-plates are cams 80, located in the path of shoulders 81, extending laterally of and inwardly from the fingers 79, and these cams are adapted to engage the shoulders and lower arms 78,

so as to disengage the fingers from the ends of the cut-oif after the latter is moved to the limit of its-movement as defined by the connected ends of the guide-plates and to permit of the reciprocation of the bed to the end of its stroke. The fingers 79 also engage the ends of the cut-off at the opposite side thereof to return the cut-off to its normal or retracted position when the. bed is reciprocated back to its initial position, and the cams 80 are soshaped as to engage the shoulders 81 to withdraw the fingers 79 from the cut-off in the same manner as heretofore described with reference to the movement of the bed in the opposite direction. Suitable stops, which may take the form of adjustable bolts 82, fixed in the bed and extending through apertures 83 (shown in dotted lines in Fig. 1) in the arms 78 and provided with heads 84:, against which the spring-arms normally press, serve' to limit the upward movement of the fingers 79 and maintain them in the proper position for engagement with the cut-off.

secured to flanges 85 on the supports 44 are cleaners which bear against the feeding-rolls and serve to remove any putty adhering thereto. These cleaners may be in the form of V-shaped angle-plates 86 87, arranged with the edges bearing against the rolls, and one of them, as 86, is adapted to cooperate with the cut-off knife and effect the severing of the plastic composition.

The operation of the machine will be readily understood. The reciprocating bed 22 having been moved to its initial position-that is to say, to the extreme right-hand limit of its movement looking at Fig. 6the frame is placed thereon. The machine is now started of the arm 69, thereby shipping the clutch and starting the feed-rolls. At about the time or immediately after the frame passes from beneath the rollsthe cam 71 engages the finger 70 to unship the clutch, and the cut-off having been engaged by the trips 7 7 it is moved into cooperation with the cleaner 86, thereby severing the sheet of material fed by the rolls. The severing of the material takes place about the time the movement of the rolls ceases. The trips are then disengaged from the cut-off by the cams 80. The puttied frame having passed from under the embossing-die 27, the machine is stopped by the engagement of the tappet 35 by its associated trip 34: on the bed. The puttied frame is then removed and one of the belts 33 shifted on to the pulley 33 to return the bed to its original or initial position. As the bed moves back the cam-bar 7 2 passes along the outer face of the finger 70 of the clutch-shipping arm 69, and the finger then slides upon and along the cam-bar 62 and drops off of the front of and in the path of said bar in position to be engaged by the cam 61 at the next operation of the machine. As the bed is returned the trips 77 engage the adjacent edge of the cut-off and return the same to its initial position, at which time the earns 80, acting against the shoulders 81 of the arms 78, withdraw the fingers 79 from engagement with the cut-off.

The

gearing

55 and 56 is of such character that the necessary adjustment of the rolls is permitted without disengaging them. Such adjustment, however, in practice is never greater than about half an inch.

As it may be necessary to putty frames of different widths and as it would not be desirable to feed from the machine the entire width of the bed-plate when a narrow frame is being puttied, I preferably provide means for regulating the feed-hopper so as to vary the width of the sheet of material fed therefrom. For this purpose the feed-hopper 38 is provided with a partition 88, which is removably and adjustably secured therein. Th'is partition has fixed to it lugs or brackets 89, through which pass set-screws 90, adapted to engage the inner face of the sides of the hopper. If it is desired to vary the effective delivery of the feed-rolls, the set-screws may be unloos- 'ened and the plate moved along to the desired position and there secured.

Having described my invention, what I claim is 1. In combination with a machine of the general class described, a feeding device comprising means for effecting the delivery of the material to be fed, and means governed by and during continuous movement of the machine for starting and then arresting the feeding device.

2. In combination with a machine of the general class described, of a movable worksupport, means for feeding the material to the work-support, and means controlled by the work-support for starting and then stopping the feeding means during continuous movement of the support.

3. In a machine of the class described, the combination with a movable work-support, of feeding means, means for starting and then stopping the feeding means during the movement'of the support, and means for automaticall y arresting the support after the stopping of the feeding means.

4. In a machine of the class described, the combination with a movable work-support, of feeding means, a clutch controlling the feeding means and adapted to be shipped and unshipped during the movement of the support, and means controlled by the support for arresting the latter after the stopping of the feeding means.

5. In a machine of the class described, the combination with a reciprocating bed, of feeding means, a clutch controlling the feeding means, a clutch-lever actuated by the bed to ship and then unship the clutch, and a connection controlled by the bed to arrest the movement of the latter after the stopping of the feeding means.

6. In combination with a machine of the general class described provided with a reciprocating bed, a pair of feed-rolls, clutch-controlled means for driving the rolls, a clutchcontrolling lever, and cams mounted on the bedfor moving the lever to ship and then unship the clutch during continuous movement of the bed.

7. In combination with a machine of the general class described provided with a reciprocating bed, a pair of feed -rolls, a shaft, gear connection between the shaft and rolls for driving the latter, a driving-wheel on the shaft, a clutch connection between the wheel and shaft, a lever for shipping and unshipping the clutch, an arm pivoted to the lever, and cams mounted on the bed to actuate the arm.

8. In combination with a machine of the general class described provided with a reciprocating bed, a hopper, feed-rolls located at the outlet of the hopper, a shaft, gearing driven by the shaft for moving the feed-rolls, a belt-pulley loose on the shaft and provided with a clutch member, a clutch member fixed to the shaft, a pivoted lever for sliding the pulley to ship and unship the clutch, an arm pivoted to the lever and provided with a finger extending over the reciprocating bed, and

cams carried by the bed to engage the finger and move the arm in opposite directions.

9. In combination with a machineof the general class described provided with a recipis journaled, intermeshing gears fixed on the shafts, a spur-gear fixed on one of the shafts, a second shaft journaled on the brackets and having a pinion meshing with the spurgear, a pulley loose on said shaft and provided with a clutch member, a clutch member fixed to the said shaft, a pivoted lever for sliding the pulley, an arm pivoted to the lever and provided with a finger extending over the reciprocating bed, and cams carried by the bed to engage the finger and move the arm in opposite directions.'

10. In combination with a machine of the general class described, a hopper, feedrolls at the outlet thereof, means for driving the feed rolls, means for arresting the movement of the feed-rolls, and a cut-off for severing the material as the movement of the feed-rolls is arrested.

11. In combination with a machine of the general class described, a hopper, feed-rolls at the outlet thereof, means for driving the feedrolls, means for arresting the movement of the feed-rolls, a sliding cut-off located beneath the feed-rolls, a pair of trips engaging the cut-off to slide the same, and cams for disengaging the trips from the slide.

12. In combination with a machine of the general'class described provided with a reciprocating bed, a hopper, feed-rolls at the outlet thereof, means for driving the feed rolls, means for arresting the rolls, guides located at opposite ends of and beneath the hopper, a sliding knife movable in the guides, trips fixed on the bed and engaging the knife in both directions of movement of the bed, and cams for disengaging the trips from the knife.

13. In combination with a machine of the general class described provided with a reciprocating bed, a hopper, feed-rolls at the outlet thereof, clutch-controlled means for driving the rolls, means for automatically shipping and then unshipping the clutch during the advance of the bed, a knife located under the rolls, and means for moving the knife to cut the material on the advance of the bed and for returning the knife to its original position on the retraction of the bed.

14:. In combination with a machine of the general class described provided with a reciprocating bed, a hopper, feed-rolls at the outlet thereof, cleaner-plates for the rolls, clutchcontrolled means for driving the rolls, cams for shipping and then unshipping the clutch on the advance movement of the bed, guides located at the opposite ends of and under the hopper, a plate sliding in the guides and having a knife-edge coacting with one of the cleaner-plates to cut the sheet of material fed from the hopper, trips mounted on the bed and having fingers engaging the plate to move it into cooperation with the latter cleanerplate on the advance of the bed and for returning the plate to its original position on the retraction of the bed, shoulders on the trips, and earns engaging the shoulders to disengage the arms from the plate after the movement of the plate in either direction.

15. In a device of the class described, the combination with a reciprocating bed, of a hopper, feed-rolls located at the mouth of the hopper, clutch-controlled means for driving the rolls, a clutch-lever, and cams carried by the bed and for moving the lever to ship and then unship the clutch during continuous movement of the bed. v I

16. In a device of the class described, in combination, a moving work-support, a hopper, feed-rolls located at the mouth of the hopper, clutch-controlled means for driving the rolls, a lever for shipping and unshipping the clutch, cams carried by the Work-support, and an arm pivoted to the lever and provided with a finger engaged by the cams during continuous movement of the Work-support to move the arm in opposite directions. I

17 In a device of the class described, in combination, a hopper, feed-rolls located at the mouth of the hopper, clutch-controlled means for driving the rolls, means for shipping and then unshipping the clutch, a knife located under the rolls, trips for engaging the knife to move the same to sever the material fed from the hopper as the movement of the rolls is arrested and then for returning the knife to its original position, and cams for disengaging the trips from the knife after each movement of the latter.

18. In a device of the class described, in com bination, a hopper, adjustable feed-rolls located at the outlet thereof, a shaft, gearing for communicating motion from the shaft to the rolls, a clutch on the shaft; a leverfor shipping and then unshipping the clutch, a reciprocating member, cams on such member for successively actuating the lever, a knife located under the rolls, trips on the reciprocating member and for engaging the knife to sever the material fed from the hopper on the advance of the member and as the movement of the rolls is arrested, and for returning the knife to its original position on the retraction of the member, and cams fof' disengaging the trips from the knife at the end of the movement of the latter in either direction.

19. In combination with a machine of the class described, of a moving Work-support,

ing and stopping the feeding means during the movement of the bed in one direction-only. 21. In combination with a machine of the general class described and provided with a ITO reciprocating bed, a die-roll associated with the bed, of feeding means, and means controlled by the bed for starting and stopping the feeding means during the movement of the bed in one direction only.

22. In combination with a machine of the general class described and provided with a moving bed, a die associated with the bed, a driving connection for moving the bed, means under which the bed moves for feeding plastic material thereto, and means forstarting and stopping the feeding means during the continuous movement of the bed.

23. In combination with a machine of the general class described and provided with a bed, a die associated with the bed, a driving connection for moving the bed, a hopper under which the bed 'reciprocates, means for feeding the plastic material from the hopper and a controller governed by the bed and actuated during the movement of the bed in one direction only to start and then arrest the feeding means.

24. In combination with a machine of the general class described and provided with a reciprocating bed, a die associated with the bed, a driving connection for moving the bed,

a hopper under which the bed reciprocates,

means for feeding plastic material from the hopper, a controller governed by the bed and actuated during the movement of the bed in one direction only to start and then arrest the feeding means, and a cut-oif for severing the plastic material delivered by the feeding means.

25. In combination with a machine of the general class described and provided with a reciprocating bed, a die associated with the bed, a driving connection for moving the bed, a hopper under which the bed reciprocates, means for feeding plastic material from the hopper, a controller governed by the bed and actuated during the movement of the bed in one direction only to start and then arrest the feeding means, and a sliding cut-off controlled by the bed for severing plastic material delivered by the feeding means.

In testimony whereof I aflix my-signature in presence of two witnesses.

CHARLES E. SANDSTROM.

Witnesses:

ARTHUR B. SnrBoLD, ELIZABETH MOLITOR.