US491747A - thompson - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. J. THOMPSON. BRICK OR TILE CUTTING MACHINE.

No. 491,747. Patented Feb. 14, 1893.

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(No Model.) 2 Sheets-Sheet 2.

J. THOMPSON.

BRICK OR TILB' CUTTING MACHINE.

No. 491,747. Patented Feb. 14, 1893.

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STATES PATENT OFFICE.

JOHN THOMPSON, OF BUOYRUS, OHIO, ASSIGNOR TO THE FREY-SHEOKLER i COMPANY, OF SAME PLACE.

BRICK OR TILE CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 491,747, dated February 14, 1893.

Application filed November 15, 1892- Serial No. 452,039. (No model.)

To coZZ whom it may concern:

Be it known that I, JOHN THOMPSON, a citizen of the United States of America, residing in Bucyrus, in the county of Crawford and State of Ohio, have invented certain new and useful Improvements in Brick and Tile Outting Tables, of which the following is a specifloat-ion.

My invention relates to improvements in cutting-tables for brick and tile machines; and the object is to provide improved means or mechanism for drawing the cutting-wireframe through the column or slab of clay by ed out and distinctlyclaimed.

I purpose in the present instance to show and describe the invention as applicable to a cutting-table for bricks, wherein thewire holding frame has the cutting-wires stretched cen- ;trally and vertically, and the platen of the table is composed of a number of plates having vertically arranged standards at each end; the plates being disposed with wire-spaces between them.

The construction and arrangement of the parts or elements composing the table are substantially identical with those shown and described in my former Letters Patent No. 456,449, dated July 21, 1891, except that the mechanism for operating that table is removed and dispensed with, and in its place I substitute a hand-lever and connections, whereby the table is adapted to be operated by the manipulation of the operator.

I have fully and clearly illustrated my improvements in the accompanying drawings, wherein p Figure 1 is an end view of the cutting-tableshowing the hand-lever and its connections to the table and wire-frame. Fig. 2 is a plan View showing the forked connecting-rod,bellcrank lever, and its connections and the lever. Fig. 3 is a detail section of the segmental-gear wheel and segmental-rack gear.

plate and formed with ways 8.

Referring to the drawings by special notations of designation A is the stationary frame or support of the cutting table, having side rails or tracks, 1, 2, on which is supported the longitudinally movable table B, mounted or sustained on wheels 3, rotating on axles 4, arranged across the frame of the movable tavble, with the wheels to run on the side rails of the stationary frame.

On the table B is supported the platen C,

or elements entering into and forming part of my said cited Letters Patent, and except "as incidentallyand necessarily associated with my present invention, form no part thereof, and therefore, it is deemed that the foregoing description is sufficient for the present purpose, and may be readily under- ,stood'in operation and construction.

Proceeding to specifically describe and set forth my present invention as connected to or aggrouped with the general part of the table as above-described: 12, 13,designate brackets secured to the side face of the longitudi nally movable part of the table and formed or provided on their outer ends with bearings 14, in which is mounted a shaft 15, carrying on one end an arm or wheel 16, having a wrist-pin or crank 17, on which is pivotally connected a pull-rod 18, forked at its inner portion as shown in the drawings in Fig. 2; the arms 19, 20, of the fork being secured at their ends to the opposite frames of the wireframes, substantially as shown. 5

It will be perceived from the foregoing de scription in connection with the drawings,

that the rotation of the wheellG will reciprocate the rod 18 and correspondingly move the transversely movable wire-frame D.

On the shaft is keyed a ratchet-sleeve 21, having the ratchets radially and oppositely arranged as seen at 22, 23; this ratchetsleeve may be formed on or cast with the shaft, but it is here illustrated as cast separate and keyed in position, and on this ratchet-sleeve is fitted a revoluble segment-gear wheel 24, having a sufficient number of cogs or teeth to turn the shaft and throw or move the transversely moving Wire-frames in both directions across the table to their limit of reciprocation. In the rim of the segment gearwheel 24 is formed a recess or chamber 25, in which is hung a pawl 26, to engage with the ratchets or steps on the ratchet-sleeve; the engagement of the pawl being attained and positively made by meansof a spring 27, in the recess, bearingwith its free end on the pawl.

On the side of the'longitudinally movable tableis f ulcrumed an internal segmental rackgear 24, having asocket 29-,in which is fitted a hand-bar or lever 30, by which the segmental gear-wheel is turned. It will be perceived from the foregoing description and reference 4 to the drawings, especially Fig. 3, that when thelever is drawn down thepawl will engage the step or ratchet-in the ratchet-sleeve and hold the segmental gear-wheel fast thereon to turn with the shaft thereby turning the shaft and through the pull-rod connection to the wire-frame draw thew-ires through the slab of clay. Then this-being accomplished, the lever is raisedfand the segmental gear wheel is carried around the ratchet-sleeve until the i pawl fallsinto and engages with the other ratchet; the crank arm or'pin of the wheel beingatthe time or position of the "mechan ism, radial at its limit back or front the downward movement of the lever will then turn the shaft so as to push orpull the'wire-frame, and f cut'the slab of'clay which *has-moved-on the platen in the meantime. It will thus be seen that the rcut'in both ways is made byra downward pull on the lever.

The slab of clay in its progression pushesthe table away fromthe machine, and of course, provision must be made to return it or run it back, and this Iaccomplish through the instrumentality of the lever when being lifted or carriedupward and the followingdescribed mechanism: On the heel or lower portion of the segmental-rack frame issecured one end .of'a chain 31,- which is carried under, and bears against a roller 32, jour-- naled in supportson the side of the stationary-frame, andfrom thence is carried across the frame of the machine, and the end fastened to an arm of a bell-crank lever33, fulcrumed on the rail of the stationary frame, as

at 34. The other armof this bell-crank levertable is run out and away from the clay-mill it will be run back to the machine and thus the lever not only operates to throw the wireframe in both directions by a downward pull, but it moves the intermediate and longitudinal movable table to its normal position adjacent to the clay-mill after having been run out on the tracks of the stationary supporting-frame.

To summarize the operation, the lever segment being moved to rotate the segmental gear and with that pull the cutting wire-frame, the wire-frame is moved across the table in the direction which the pull-rod moves between the cranlc-wheel or arm, this is always attained by the downward stroke or move ment of the lever, which reaches itslowest requisite limit, at substantiallythe time the table has been carried out and away from the play-mill to its limit oftnavel, then on "lifting theleverthe chain a in connection with the j ibell-crank leverisd-raw-n on and moves-that llever so that the table is run back to its poj'sition adjacent tothe clay-mill.

: Having thus described my invention" as prescribedby the statute what I claim and idesire to secure by Letters-Patent is:-

1. The comb-inationwithabrick and tile cutting table consisting of a stationary base, a longitudinally movable table on the base having a platen mounted thereon'to move gtherew-ith and a cutting-wire-frame arranged @to move=transverselyacross the movable table, of a shaft journaled on the sid-e-of the @movabletable, a crank on the shaft; aconmeeting-rod on the crankand having itsother tend fastened to the cutting wire frame, a

gratchet-sleeve fixed on the said shaft, and a lever and "pawl to engage the ratchet-sleeve in the downward movement ofthe lever, and move the cutting-wire-frame across thetable ;in both directions;

1 2. 'In a brick and tile cu'tting ta'ble, the com- ;-bination of astation'ary-base-frame or supiport a longitudinally m'ovable table on the stationary-frame provided with a platen movable therewith, a cutting-wire frame on the movable frame arranged to move transversely across the same, a shaft mounted on the longitudinally movable table, a' crank 011' the shaft, a connecting-rod between the crank and the cutting wire-frame, a'ratchet-sleeve on thesaid'shaft provided with ratchets radially and oppositely arranged, a segmental- :gear mounted to turn on the ratchet-sleeve, a pawl in the segmental-gear to engage the ratchets, a segmental-rack to engage the seg mental-gear, and a handle in the segmental rack.

3. In a brick and tile cutting table the'combination with the longitudinally moving table thereof, of alever fulcrumed on the side of the longitudinallymovable table,'a bell-crank lever fulcrumed to a stationary poin-t on the frame of the table a connecting-chain between an arm of the bell-crank lever and the lever on the side of the table, and a pull-rod having one end attached to an arm of the bell-crank lever and the other end connected to the movable-frame of the table whereby when the table is run out from the clay-mill it may be returned to normal position.

4;. In a brick and tile cutting table the combination with a longitudinally movable table, and a cutting wire-frame arranged to transversely move across the table, of a shaft j ournaled to the side of the movable table, a crank on the shaft, a connecting rod between the crank and the wire-frame, a ratchet sleeve on the shaft, a segmental-gear mounted to turn on the ratchet sleeve, a pawl in the segmental-gear to engage the ratchets of the nesses.

JOHN THOMPSON. Attest:

W. CLARENCE DUVALL, A. G. I-IEYLMAN.

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