US888094A

US888094A - Ingot-stripper.

Info

Publication number: US888094A
Application number: US35604007A
Authority: US
Inventors: Raphael S Kirk
Original assignee: Alliance Machine Co
Current assignee: Alliance Machine Co
Priority date: 1907-02-06
Filing date: 1907-02-06
Publication date: 1908-05-19
Anticipated expiration: 1925-05-19

Description

N. 88094. PATENTED MAY 19 1908.

O 8 R. s. KIRK.

INGOT STRIPPER.

APPLICATION FILED FEB. 6, 1907. 6 SHBETB SHEET 1.

WITNESSES INVENTOR W MAM 'k @Wr W A 3 n1: NORRIS FITIRS 50.. WASNINOTON, 5.1:

.888 094. ATENTED MAY 1 1 0 N0 R. s. KIRK. P 9 8 INGOT STRIPPER.

APPLICATION FILED FEB. 6, 1907- 6 SHEETS-SHEET 2.

INVENTOR R 8 WM? flwmd qmu WITNESSES THE NORRIS PETERS c0" \vAsnmcran, o. c

PATENTED MAY 19, 1908. R. S. KIRK.

INGOT STRIPPER.

APPLIOATION FILED FEB. a, 1907.

6 SHEETSSHEET 3.

Q'QIWI', y X

WITNESSES 1H: uonms PITIR! to vusnmurou, n. c.

PATENTED MAY 19, 1908.

6 SHEBTSSHEET 4.

R S KIRK INGOT STRIPPER.

APPLICATION FILED FEB. 13, 1907.

WITNESSES 1n: NoRms FITRRS ca, wnsnmaro v. n. c.

No. 888,094. PATENTED MAY 19, 1908.

R. S. KIRK.

INGOT STRIPPER.

APPLICATION FILED FEB. s, 1907.

6 SHEETS-SHEET 5.

THE NORRIS PETERS c0-. \wlsmrycmu, 0.1:.

No. 888,094. .PATENTED MAY 19, 1908.

v -R. SrKIRK. INGOT STRIPPER.

APPLICATION FILED r1113. 6, 1907.

6 SHEETS-SHEET 6.

Q. @1513 X Q GMMMHQb NJ, Nh (b as WITNESSES THE NORRIS Psm'Rs co., wasnmcrou, 0. c.

UNITED STATES r anna OFFICE.

RAPHAEL S. KIRK, OF ALLIANCE, OHIO, ASSIGNOR TO THE ALLIANCE MACHINE COMPANY, OF ALLIANCE, OHIO, A CORPORATION OF OHIO.

INGOT-STRIPPER.

Application filed February 6, 1907.

To all whom it may concern:

Be it known that I, RAPHAEL S. KIRK, of Alliance, Stark county, Ohio, have invented a new and useful lngot-Stripper, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure l is a front view of an ingot stripper embodying my invention; Fig. 2 is an end view of the same with a portion of the tongs removed and shown in Fig. 2; Fig. 3 is a sectional plan on the line IIIIII of Fig. 1 Fig. 4 is a View partly in elevation and partly in section of the upper portion of the stripping column and of the gearing carried thereby Fig. 5 is a plan view of the gearing and drums at the upper end of the stripping column, and Figs. 6 and 7 are two views taken at right angles to each other and partlyin elevation, and showing the lower portion of the stripping colunm, and the tongs.

My invention has relation to ingot strippers, andis designed to provide a novel and el'licient mechanism of this character having a movable stripping column with a chain adapted to pull directly upon the tongs carrier and actuated by gearing mounted at the top of the column and movable therewith.

The invention is also designed to provide simple and effective gearing for actuating the tongs carrier, to provide improved means for operating the tongs, and to improve the general construction, and arrangement of the parts, as will hereinafter more fully appear.

Referring to the accompanying drawings, the numeral 2 designates a crane bridge, which ismounted in the usual manner upon a suitable runway or tracks 3, upon which it is actuated by a motor 4 and gearing 5.

6 designates the frame of a trolley carriage, which is mounted to move on the girders 7 of the traveling crane bridge by means of the motor 3 and gearing 9. Depending from the trolley frame are guides 1.0 for a vertically movable stripping column 11, to the lower end of which is secured a bull-nose or ingot stop 12. The stripping column 11 is moved up or down through the dependent guides 10 by means of the ropes or cables 13, which pass over sheaves 14 rotatably mounted in the stripping column, being connected at one end to a winding drum 15 and at their opposite ends to the pulleys 16 on the trolley carriage. The drum Specification of Letters Patent.

Patented May 19, 1908.

Serial No. 356,040.

15 is actuated by an electric motor 17 through the gearing 18, (see Fig. 3).

Mounted to move vertically on guides 19 within the lower portion of the stripping column, is a cross-head 20 to which are pivoted at 21 the tong arms 22. Secured to the cross-head 20, by means of nuts 23, or other suitable means, is a vertically arranged tension bar 24, which extends upwardly through guides 25 within the stripping column, and is secured at its upper end to a cross-head 26. The cross-head 26 has extensions 27 to which are connected a chain 28, whose ends are connected to drums 29, mounted on the upper ends of the stripping column. These drums are loosely mounted on shafts 30 which carry eccentrics 31 One end of each of the drums has an internal gear wheel 32, whose teeth 33 engage the teeth of pinions 34, which are mounted on bushings 34 on the eccentrics 3]. of the shafts 30, (see Fig. 4).

Each pinion 34 has an arm 35, which is connected to the smaller arm of the other pinion by a pin 36, (see Fig. 5). The two shafts 30 are geared together by means of the intermeshing spur wheels 37, one of which is driven by a pinion 38 on a stub shaft 39, mounted on a bracket 40 at the upper end of the stripping column, and carrying a bevel gear wheel 41 which is driven by a bevel Wheel 42 at the upper end of a squared, vertical shaft 43. The shaft 43 has a bearing at its upper end in the bracket 40, and at its lower end is stepped in a bearing 41 projecting laterally from the lower end portion of the stripping column. This shaft 43 slides vertically through a bevel wheel 44 mounted on the trolley carriage and driven by-a bevel pinion 45, carried by a stub shaft 46. The stub shaft 46 has a spur gear wheel 47 driven by a pinion 48 on the shaft of a motor 49. As the stripping column is moved up and down, the shaft 43 slides through the pinion 44, so that the shaft 43, and thereby the drums 29, may be actuated in all positions of the stripping column. The arrangement of gearing for actuating the drums 29 provides for the necessary reduction in speed, and enables said drums to exert a powerful lifting action.

The gears 37 are keyed to the shafts 30, of which the eccentrics 31 are a part, and the relation of those eccentrics in the bushings 34 of the gears 34, of which the arms 35 are a part, carries the line of contact of the teeth of the gears 34 around the internal gears 33, so

that one rotation of the eccentrics will advance the gears 33 a distance equal to the difference in the number of teeth in the

gears

33 and 34. The arms 35 being connected by the pin 36, have a rocking motion on this pin which prevents rotation of the gears 34. The gears 33, being connected directly to the drums 29, the eccentrics 3 1. may be rotated in either direction a sufiicient number of turns to give the required stroke for the stripping action.

The tong arms 22 are provided with up ward extensions 22, above their pivots 21, and these extensions have a slotted connection 50 with the depending arms of hell crank levers 51. The bell crank levers 51 are fulcrumed at 52, and to their other arms are connected vertical rods 53, which extend upwardly within the stripping column and pass through the stops 54. Springs 55 surround these rods, these springs being situated between the stops 54, which are carried by the stripping column, and collars 56 on the rods. When the tongs-carrying cross-head 20 is lowered to its extreme lower position, these rods 53, being constrained by the spring supports on the stripping column, act to move the extensions 22" of the tong arms inwardly, and thus open the tongs so that they can pass over the lugs of the mold A, (Fig. 6).

The operation is as follows :The crosshead 20 being lowered to its extreme position, the tongs are opened in the manner described in position to engage the mold lugs, and with the ingot stop or bull nose 12 resting upon the top of the ingot in the mold, the stripping column having previously been lowered to this position. The chain drums 29 are now actuated, making practically one revolution, and reeving in both end portions of the chain equally. A direct upward pull is thereby exerted upon the bar 24, which in turn raises the lower cross-head and strips the mold. As soon as the mold has cleared the ingot, the stripping column is then raised by actuating the winding drum 15, and the trolley, and crane, are moved to carry the mold to the desired point.

The advantages of my invention result from the arrangement of the chain drums and their actuating gearing at the top of the stripping column, and arranged to be driven by a motor which can be carried on the trolley frame also in the means by which the chain exerts a direct pull on the tongs-carrying cross-head without the interposition of gearing between the chains and the cross-head; also in the provision of the simple means for opening the tongs when the cross-head is lowered, and in the generally simple and practical construction and combination of the apparatus as a whole.

It will be obvious that those skilled in the art may make various changes in the construction and arrangement of the several the column, a drum journaled on said column, a flexible device connected to the said drum and'to the tongs-carrier and arranged to effect a direct upward'pull thereon, and means for actuating said drum in different positions of the column; substantially as described.

2. In an ingot stripper, a vertically movable stripping column, means for raising and lowering the same, a tongs-carrier guided in the column, actuating drums on said column, and a winding chain connected to said drums and to the tongs-carrier to exert a direct upward pull thereon; substantially as described.

3. An ingot stripper having a vertically movable stripping column, means for raising and lowering the same, a tongs-carrier guided in the column, winding drums j ournaled on the column, and a flexible device connected to the drums and to the tongs-carrier and arranged to exert a direct upward pull on the tongs-carrier substantially as described.

4. In an ingot stripper, a vertically movable stripping column, means for raising and lowering the same, a tongs-carrier guided within the column, winding drums journaled at the upper end of the column, and a winding chain connected to the drums and to the tongs-carrier, and gearing for actuating said drums in dilierent positions of the column; substantially as described.

5.. In an ingot stripping apparatus, a trolley having a depending guide frame, a stripping column arranged to move vertically in the depending guide frame, a hoisting rope connected to the column, a winding drum for the rope, a tongs-carrier movable in the column, and gearing mounted on the upper end of the column and connected to the tongscarrier tov exert a direct upward pull thereon; substantially as described. d

6. In an ingot stripping apparatus, a vertically movable stripping column, a tongscarrier, a lower cross-head mounted in guides in the column and having tongs connected thereto, a bar connected to the cross-head and extending upwardly within the column, a chain connected to the upper end of the bar, and winding drums and gearing at the upper end of the column for said chain; substantially as described.

7. In an ingot stripper, a vertically movable stripping column, atongs-carrying crosshead mounted to move in said column, a bar extending upwardly from the cross-head the last named cross-head, a pair of winding drums at the upper end of the column, to which the chain is connected, and gearing for actuating the drums; substantially as described.

8. In ingot stripping apparatus, a movable trolley frame, a stripping column movable vertically through said frame, a tongs-carrier movable in the column, a chain connected to the tongs-carrier, and drums at the upper end of the column to which the chain is connected, gearing for actuating the drums, a shaft carried by the column for actuating the gearing, and an actuating gear for the shaft on the trolley and through which the shaft is movable; substantially as described.

9. An ingot stripping apparatus, a vertically movable stripping column, a pair of winding drums journaled at the upper end of the column and having internal gearing, shafts extending loosely through the drums and having eccentrics, and pinions mounted on the eccentrics of the shafts and meshing with the internal gears of the drums; substantially as described.

10. In an ingot stripping apparatus, a vertically movable stripping co umn, a pair of intergeared shafts j ournale'd at the upper end of the column, and having eccentric portions a winding drum loosely mounted on each shaft and having an internal gear, pinions mounted on the eccentric portions of the shafts and intermeshing with the internal gears, and actuating connections for one of said shafts; substantially as described.

11. In ingot stripping apparatus, a vertically moving stripping column, a pair of shafts journaled at the upper end of said column and having eccentric portions, winding drums loosely journaled on the shafts and having internal gear teeth, pinions journaled on the eccentric portions of the shafts and meshing with the internal gear teeth, a connection between the pinions, and gearing for actuating the shafts at different positions of the column; substantially as described.

12. In an ingot stripper, a stripping column, a tongs-carrier guided thereby, tongs pivoted to the carrier and having vertically extending arm extensions, vertical rods connected to said extensions and passing through stops on the column, and springs arranged between said stops and bearings on the rods; substantially as described.

13. In an ingot stripper, a stripping column, a tongs-carrier mounted to move on the stripping column, tongs pivoted to the said carrier and having upwardly extending arms bell cranks to which the arms are connected, and upwardly extending rods connected to the bell cranks, said rods having spring stops on the column; substantially as described.

In testimony whereof, I have hereunto set my hand.

RAPHAEL s. KIRK.

Witnesses: G. W. SHEM, i EDWIN W. DIEHL.