US787078A

US787078A - Molding-machine.

Info

Publication number: US787078A
Application number: US22569804A
Authority: US
Inventors: Arthur Choiniere
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-09-23
Filing date: 1904-09-23
Publication date: 1905-04-11
Anticipated expiration: 1922-04-11

Description

No. 787,078. PATENTBD APR. 11, 1905. A. GHOINIERB.

MOLDING MACHINE.

APPLICATION FILED SEPT. B3, 1904.

2 SHEETS-SHEET l.

No. 787,078. PATENTBD APR. 11, 1905. A. GHOINIERE.

MOLDING MACHINE.

APPLIOATION FILED SEPT. 23. 1904.

2 SHEETS-SHEET 2.

Patented April 11, 1905.

UNTTED STATES PATENT UEETCE.

ARTHUR CHQINIERIC, OF IIOLYOKR, UASSAUIIUSlCT'lS.

NIOLDING-NIACHINE.

SPECIFICATION forming part of Letters Patent No. 787,078, dated April 1l, 1905.

Application filed September 23,1904. Serial No. 225,698.

.To l/'/ 0111' if 711/1/1/Ifo/merit:

Be it known that L An'rntu Cuoixnnnfi, a

citizen of the United States of America` anda resident of llolyoke, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Molding-Machines. of which the 'followingis a full,

l f/ to carry itand the pattern a/L' g'ently, steadily, and without tilting' clear and away from the having' for its object to remove the mold-plate from the flask after the flask has been Iilled L clear` and exact description.

This invention relates to a moldlng-machine,

with sand to acquire therewithin the depresw i sion for the casting' freely and without any tilting motion, which mig'ht result in breaking' the sand at the boundaries of the casting depression.

lt is desired that the machine shall be capable of convenient, comparatively quick, and certain operation time and time ag'ain and to have the parts thereof so constructed, ar-

ranged. and operating' as to leave the table on t which the flask and mold-plate are supported during the sand-filling operations clear and i unobstructed for the easy performance ofthe l v end of the table, the same having' at one end y an operating' handle-lever E, and means are work.

rl`he invention consists in combinations and arrangements of parts, all substantially as hereinafter described` and set forth in the claims.

'.he improved machine is represented in the accompanying drawings, in which Y Fig'ure i is a side elevation. Fig'. 2 isa plan view, and Fig'. 3 is an end elevation.

Similar characters of reference indicate corresponding' parts in all of the views.

l i l In the drawings, A represents the table, the 5 rammed into the tiask andevened at the top the bottom plate. and is top plate is placed over the iiask and the llask and plates f/ and are temporarily confined by the clamps fe. whereupon the so-clamped parts are overturned to the position shown in Fig'. 1, the end portions of the mold-plate f/ overhanging the ends of the flask. lt now becomes the object to mechanically lift the mold-plate top of the flask VWfor instance, to the. position rtmresented in Fig's. 1 and il of the drawingsand the machine for the performance of this step of the molding' operation will be now described.

At the opposite ends of the table are provided vertical bars B B. arranged for straight vcrtical movements in and through the guides a, which are provided at the opposite ends of the table. The heads or upper end portions of the said vertical bars YB havealinedhorizontal guideways /f for the horizontal stcm-shanks I of the lifters C, which latter, with the stems d, have a T-shaped formation. A rock-shaft D extends lengthwise under and from end to provided between the rock-shaft for imparting' from the oscillation thereof rising-andfalling' motions to the vertical bars B B, said means, as shown, consisting' of a pair of levers ff at the opposite endsl of the rock-shaft and rig'idly aliixed thereto, and to the ends of these 1 levers links f/ are pivoted, such links being' also pivoted at the outer faces of the vertical bars B B. Hence lhcswing'ing' of the handlelever and rocking' of the shaft will vertically move the bars B B either up or down, according' to the direction of oscillation of the shaft. Y The lifters, as shown, have rods /f straight, vertical, and parallel with the bars B B. the upper ends of said rods being' horizontally turned, as represented at fi, and rigidly connected with the lifters and form runners for the slidable engagement of the means Yfor insuring' the inward projections of the lifters over the table and then to the projecting ends of the mold-plate and for outwardly withdrawing the liftcrs when they are lowered.

A lever (V is pivotally mounted horizontally under an intermediate portion of the table, said sides of the pivot j', these rods having eyes at their outer extremities which loosely encircle the vertical rods 71 which are understood as depending rigid members or parts of the litters, so that endwise motions of the rods z' 2 will correspondingly impart endwise motions to the litters, and yet the rising-andtalling movements of the rods L, carried by the litters, will be freely permitted, as such rods 7L have the capability of movement through the eye-formed ends of the connecting-rods 't' z'.

The lever G is automatically and seasonably swung by the swinging movement which is correspondingly imparted to the horizontallypivoted lever J, the connection between the levers Gr and J being' by the connecting-rod m.

rlhe extremity ot the lever J which projects beyond the one end of the table and across the range ot working movement of the rockshatt handle-lever E is adapted to be so engaged by such handle-lever that after the latter lever has been swung forwardly a short distance and suficiently to bodily elevate the litters C to positions slightly above the top of the table such leverl will be swung during a portion of the further movement of the handle-lever to secure the inward projections ot the litters to their positions under the ends ot the mold-plate, and so that such litters will in being carried upwardly bodily at the upper ends of the vertical bars by the continued and final movement of the handle-lever and rocking of the shaft D lift the mold-plate, maintaining it perfectly level, and carrying the pattern out from the sand and above the upper edges of the iiask.

As shown,the outer extremity ot the lever J is of forked shape, and on the initialforward swinging of the handle-leverE the fork member 0 is engaged for the citent last above set forth, it being understood that after the handle-lever E has been swung sufiiciently toward its position represented by the dotted lines in Fig. 3 it becomes disengaged from the fork memberl 0, which has become swung to a position to let the lever E clear it, so that of course the latter considerable upward movement of the litters will be without any further inward motions, and it will also be taken into account that the lever J will acquire in being swung as aforesaid to a position so that the other fork member 02 will be engaged by the handle-lever as the handlelever is returned to its original position, (which original position is represented in Fig.

3,) and the lever J will be linally swung as the vertical bars B B and litters resume their lowered positions to cause, through the connections 4 c', the litters to resume their outwardly-withdrawn positions. (Represented by the full lines in Figs. l and 2.)V

The intermediate lever, as shown, is provided with a forwardly-extended handle t, so that this lever may be manually operated, it desired, in case the lever J and its connection m become deranged or inoperative or in case such parts J and m are removed or absent from the machine, so that it is optional with the molder whether the inward and outward movements of the levers be insured automatically as a resultant of the manual operations imparted to the handle-'lever E or by properly-timed manual operations of the intermediate lever at its handle extension t.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. In a molding-machine, the combination with a table and bars vertically movable at opposite ends thereof, of litters bodily carried by the bars, and guided thereon, for acquiring horizontal inwardly projected, and retracted, positions, means for elevating the bars, and means operated by the bar-elevating means tor concurrently changing the positions ot the litters.

2. In a molding-machine, the combination with a table and bars vertically movable at opposite ends thereof, of mold-plate litters bodily carried by the bars, and guided thereon to have horizontal inwardly projected, and retracted, positions, a rock-shaft, a handle-lever carried thereby and another lever carried by said shaft, a link connecting the secondnamed lever with one ot the bars, means tor vertically moving the other of said bars concurrently with the vertical movements of the one bar, and means for horizontally inwardly projecting and withdrawing the horizontallymovable litters.

3. ln a molding-machine. the combination with a table and bars vertically movable at opposite ends thereof, of mold-plate litters bodily carried by the bars, and guided thereon to have horizontal inwardly projected, and retracted, positions, a rock-shaft extended horizontally under the table, a handle-lever carried thereby, and paired levers carried by said shaft, and links connecting the rock-shaft with the vertically-movable bars, andvmeans tor horizontally inwardly projecting and withdrawing the horizontally-movable litters.

4. In a molding-machine, the combination with a table and bars vertically movable at opposite ends thereof, ot mold-plate litters bodily carried by the bars, and guided thereon to have horizontal inwardly projected, and retracted, positions, a rock-shaft having a handle-lever, a pair of levers carried by and at the ends of said shaft, links connecting the pair of levers with the bars, and means for horizontally inwardly projecting and withdrawing the horizontally-movable litters en- Ioo IIO

IIS

by said shatt, links connecting the pair ot levers with the bars, a horizontally-swinging lever positioned to be engaged and swung by I5 the rock-shatt handle-lever, a lever arranged under an intermediate portion ot the table, and connected with said horizontally-swing ing lever. and connections between the intermediate lever and the litters, tor the purposes set torth.

t3. ln a molding-machine, the combination with a table and bars vertically movable at opposite ends thereot, ot mold-plate litters bodily carried by the bars, and guided thereon to have horizontal inwardly projected, and retracted, posit ions, means tor elevating the bars, a rockshatt having a handle-lever carried thereby, and a pairot levers also carried b5' said shatt, links connecting the pair ot levers with the bars, a horizontally-swinging lever positioned to bc engaged and swung by, and then disengaged trom, the rock-shaft handle-lever and to be reengaged and reversely sw ung on the return motion ot the handle-lever, a lever arranged under an intermediate portion ot' the table, and connected with said horizontallyswinging lever, and connections between the intermediate lever and the litters, tor the purposes set torth.

to T,

with a table and bars vertically movable at opposite ends thereot, ot moldplate litters bodily carried b v the bars, and guided thereon to have horizontal inwardly projected, and retracted, positions, means tor elevatingl the bars, aroekshatt having a handle-lever carried thereby, and a pair ot levers also carried by said shaft, links connecting the pair ot levers with the bars, a horizontally-swinging lever positioned to be engaged and swung by the rock-shatt handle-lever, a lever arranged under an intermediate portion ot` the table, and connected with said horizontally-swinging levers, and rods connected with the intermediate lever, and having vertically-sliding engagements relatively between their outer ends and suitable portions ot the litters.

n'. ln a molding-machine, the combination with a table and bars vertically movable at opposite ends thereo't, ot mold-plate litters bodily carried by the bars, and guided thereon to have horizontal inwardly projected, and retracted, positions, means tor elevating the bars, a rockshatt having a handle-lever carried thereby, and a pair ot levers also carried by said shatt, links connecting the pair ot levers with the bars, a horizontally-swinging lever having a Vtorked-shaped extremity positioned to be engaged and swung by the rock-sha't't handlelever, a lever arranged under an intermediate port-ion ot the table, rods connecting said intei-mediate lever with said horizontally-swinging lever, vert-icalrods provided on the litters, and a pair ot' rods connected with the intermediate lever and having slide engagej ments with the vertical rods ot the litters.

l Signed by me, at Springlield,Massachusetts,

in presence ot two subscribing witnesses.

ln a molding-maehine, the combination ART H UR CHOIN 1ERE.

l lVitnesses:

VM. S. BnLLmvs, G. R. Diiisooiiri.