US1052415A - Machine for slotting tie-plate flanges. - Google Patents

Description

T. V. HANDLOSER SLv J. C. DILWORTH. MACHINE Fon SLOTTING TIB PLATE FLANGES.

Patented Feb. 4, 1913.

3 SHEETS-SHEET 1.

APPLIOATION FILED AUG. 3,y 1910.

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.animal nlm T. V. HANDLOSER dr, J. G. DILWORTH. MACHINE POR SLOTTING TIE PLATE PLANGES.

APPLICATION FILED AUG. 3, 1910.

Maw/007% Wam@ T. V. HANDLOSER &, J. C. DILWORTH. MAGHINE PoR sLoTTING TIB PLATE FLANGBS.

APPLICATION IILBD AUG. 3, 1910.

Patented Feb. 4, 1913.

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WITNESSES INVENTOHS IZ [f/lau am @M M maman spaans naar oracion THOMAS V. HANDLOSER AND JOHN C. DILWORTH, OF PITTSBURGH, PENNSYLVANIA,

ASSIGNORS TO DILWORTH, PORTER & COMPANY, LIMITED, OF PITTSBURGH, PENN- SYLVANIA, A LIMITED PARTNERSHIP.

MACHINE FOR SLOTTING TIE-PLATE FLANGrES.

Specification of Letters Patent.

Patented Feb. 4, i913.

Application filed August 3, 1910. Serial No. 575,362.

To all whom t may concern.'

Be it known that we, THOMAS V. HAND- 'LosnR and JOHN C. DILwoR'rH, both residents of Pittsburgh, Allegheny county,

State of Pennsylvania, have invented a new and useful Machine for Slot-ting Tie-Plate Flanges, of which the following is a full,

clear, and exact description, reference bepreferred form of machine, constructed in accordance with our invention; Fig. 2 is a top plan View with the top plate partlyl broken away; Fig. 3 is a llongitudinal central section; Fig. 4 is a cross section of the side frame and plunger; Fig. 5 is a detail plan view showing the attachment of the dies to the plunger; Figs. 6, 7 and 8 are' detail views of the die-block and holders; Fig. 9 is a perspective view of the tie-plate 4before slotting the flanges; and. Fig. 10 is a similar view after slotting.

Uur invention relates to the slotting of tie-plate flanges. These tie-plates are rolled with continuous flanges, as shown in Fig. 9, and these flanges are slotted to form rectangular claws, as shown in Fig. 10, and the claws are then preferably pointed. In the slotting of these continuous flanges to form the claws, each .flange has heretofore been slotted separately, thus requiring two slotting operations for each plate. Furthermore, the -plate was not supported in a horizontal position, as the slotting dies acted vertically. I

In our machine, the flanges are both slotted simultaneously, thus doing away with one operation, and the plate lies hori zontally, so that the row of plates may bev shims 25.

6, 6, these shafts having toothed wheels 7 7 intermeshing with idler gears 8, 8. The gears 8, 8, intermesh with their driving pinion 9, on shaft l0, which is the main shaft through which the power enters. The bearings for the shaft l0 and the idlers are mounted in a top frame 1l.

Centrally secured to the base is a `dieblock l2, which is recessed to receive a channel-shaped die holder 13, which is adjust ably secured to t-he die holder by screw bolts 14, extending through the die block.

-13a designates the four stationary dies,

which are secured in two pairs within the l die holder, and are clamped therein by the split key blocks l5, which are slightly shorter than the dies to provide space for the material removed from the flanges ,of the tie plate. These keys are provided with tapered recesses to receive the wedge-shaped key bolts 16, the lower ends of which are provided with nuts which engage the under face of the die holder 13a and lie within a recess in the die block.

rlhe angle frames arey providedwith suitable guide-ways for the plungers 4, which plungers are guided in shoes or bushings 18, which are removable and replaceable when worn. The lower end portion of each plunger is recessed to receive a die-holder securing bolts 20, for the die-holder and when this die-holder is slid into place, the block 21 is screwed to the side of the plunger.

spacedfrom each other a distance equal to or slightly greater than the Width of the dies 13a, and are clamped in their adjustable position by the clamping plate 23. The

angle frame is provided with inwardly projecting longitudinal shoes or plates 24, between which and the plunger. are arranged These shims are preferably in the form of long bars having bosses Q6, en aged by vthe hold-down bolts 27 and provie for taking up the wear of the plunger.

Theoperator may feed the plates to the The die-holder is longitudinally ren cessed to receive the three dies 22, which arev machine by laying one after the other on the male die holder. We prefer, however, to provide a feed system, such as shown in Figs. 2 and 3. ln the form shown, a bracket 5, 28 is secured to the central portion of the front end ofthe base frame, this bracket projecting upwardly and having adjustably secured to it two angle-bars 29, which may be adjusted toward and from each other. The tops of these angle-bars are flush with the top of the die-holder. At the rear of the machine is an ordinary gravity feedout device 30 in the nat-ure of a skid formed of angle-bars, upon which the plates as they are pushed forward fall one after the other and slide down. rlhe tie-plates 31 are preferably laid on the in-feed bar 29 with their edges abutting against or adjacent to each other. The plates are shoved forward ingrftermittently by the hand-lever 32, having a link 32, to which is secured a guided pusher 33, to engage the rearmost plate. rI`he movement of the lever in both directions is limited by stops 34 and 35, of which the stop 35 is adjustable to provide for different lengths of plates,

Each plate when in slotting position is held down by a vertically movable holder 36, which is preferably provided with a spring 3e shoe 37, to allow for variations in the plates and impart a yielding pressure. This holddown rod is pivoted to a lever 38, mounted on rock-shaft 39, carried by the top frame 11, this shaft being rocked by a. lever 40, pivoted to pitmen 41, connected with another eccentric 42 on the shaft 6. At each stroke of the machine, this hold-down is forced downwardly to engage the plate just prior to the die-slotting action.

In the operation of the machine, the operator at each stroke of the machine pushes the feed lever forward to bring the inmost plate into position lever, lays another plate next to the pusher 45 33 and in front of the die-block. At each stroke of the machine, the six movable dies 22 coact with the four stationary dies 13a to slot the flanges and cut away both the outer and center port-ions thereof, forming four separated claws, two in each row.

The advantages of our invention will be apparent to those skilled in the art. The' slotting of the claws is carried, out at one operation, and the action of one plunger opposes that of the other, so that there is no undue strain on the stationary dies as the pressure from one set of movable dies is transmitted to the other movable die through the body of the tie plate, which permits us to remove a greater amount of metal with the movable dies than is backed up by the stationary dies without providing any supplemental devices for preventing the stationary dies from removing the portions of the flanges adjacent thereto. The machine and on retracting the,

jblock, a die holder-in said block,

is adjust-able for different sizes of plates and different locations of the claws. The dieholding systems are simple, not liable to et out of order, and are arranged to permit the dies to be adjusted with relation to each other. The system of feeding the plates is simple, under entire control of the operator, and may be rapidly operated in time with the stroke of the machine. The feed-out of, the plates is automat-ic.

Many changes may be made in the form and arrangement of the parts; the feed system may or may not be used; and many other changes may be made without departing from our invention.

We claim:

1. A tie plate slotting machine having a i central tie plate support arranged4 to receive a tie plate having flanges at both ends thereof, stationary dies on said support for eng5 gagingbot-h flanges on the tie plate, oppositely moving dies coacting with the stationary dies for removing a portion of said flanges, and mechanism for moving saidmovable dies simultaneously so that they will resist each other through the body of the tie plate and thereby remove the material adjacent to the movable dies without affecting the material adjacent to the stationary dies; substantially as described.

2. In a tie plate slotting machine, a Support having sets of projecting dies with spaces to receive the right-angled projecting flanges of the plate body, feeding mechanism also arranged to accommodate said flanges and feed the plates successively into slotting position on the support, and oppositely acting sets of dies arranged to simultaneously slot the flanges at'opposite sides of the plate on the support, substantially as described.

3. ln a tie-plate slotting machine, a die block, an adjustable die holder in said block, and slotting dies adjustably lsecured in said holder by a clamp, the clamp acting to wedge the parts together to form a substantially solidv block; substantially as described.

4. In a tie plate slotting machine, a die adjustable dies secured in the die holder, and plungers carrying dies movable parallel to the plate and at right angles tothe flanges of the plate to coact with the stationary dies in simulta- -neously slotting the flanges at opposite sides,

substantially as described.

5. A tie plate slotting machine, having a central tie plate support arranged to receive a tie plate having flanges at both ends thereof, stationary dies on said support for engaging both flanges on the tiel plate, oppositely moving dies co-acting with the stationary dies for removing a portion of said flanges, actuating mechanism for moving said movable dies simultaneously so that they will resist each other through the body of the tie plate and thereby remove the materaladjacent to the removable dies Without In testimony whereof, We have hereunto alfectlng the material adjacent to the staset our hands.

tional-y dies, and a power actuated holding- THOS. V. HANDLOSER. device for holding lthe tie plate on the cen- JOHN C. DILWORTH.

' tml plate support during the movement to- Witnesses:

Ward each other of the moving dies; sub- C. P. BYRNES,

stantially as described. H. M. CORWiIN.

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