US271440A - Tinner s machinery - Google Patents

Description

(No Model.) 2 ShetsQ-Sheet 1.

N. G. FAIR.

TINNERS MACHINERY.

(Nq Model.) 2 'sheets-sheet 2;

' N. G. FAIR.

' TJNANERS MACHINERY.

No. 271,440. A PatentedJamSO, 1883.,

UNTTED STATES PATENT raten.

NATHANIEL G. FAIR, OF BRISTOL, TENNESSEE.

TINNERS MACHINERY.

SPECIFICATION forming part of Letters Patent No. 271,440, dated January 30, 1883.

Application led June 8, 1882. (No inodeh) To all whom it may concern:

Be it known that I, NATHANIEL G. FAIR, a citizen of the United States, residing at Bristol, in the county of Sullivan and State of Tennessee,have invented certain new and useful Improvements in Tinners Machinery, of which the following is a specitlcatiomreference being had therein to the accompanying drawings.

My invention relates to tinners machinery; and it is designed for cutting tin, sheet-iron, and other thin metal. The several parts are so arranged that the material operated upon can be out, wheth er it be angular, oval, convex, or other form. The device is provided with a series of' graduated scales, by the use of which I am enabledto dispensewith patterns in shaping material to be cut.

The machine will do the combined work of the square shears, stock-shears, circular shears, and dies. It operates in a smooth and rapid manner, and is easily adjusted for any of the purposes within its scope. lt is operated by foot, steam, or other power. A balance or Hy wheel contributes its momentum, when set in motion, to the operative parts, so that a smooth action can be maintained by the operator. Thefoot-powerisimparted through the medium of a treadle, the treadle being connected to a lever which is provided with a pawl that worksaratchet-wheel. Alightspringholdsthe pawl against the ratchet-wheel. The treadle and lever are forced down by the pressure of the foot and are thrown up bya spring. The ratchet-Wheel is rigidly attached to one end of the main shaft. On the other end of said shaft is the balance-wheel. The ratchet-wheel is also fixed to the grooved wheel that works under the vertical cutting-wheel. The downward movementofthetreadle starts the ratchetwheel, the grooved wheel, and, through the main shaft, the balance-wheel. The pawl on the lever engages the teeth of the ratchetwheel in going down and passes freely back with the upward motion ofthe treadle. By this means the several parts are set in motion, all of which will be more fully hereinafter described, and pointedout in the claims.

In the accompanying drawings, Figure 1 is a perspective view of my invention. Fig. 2 is a central longitudinal section. Fig. 3 is a side elevation of the ratchet-wheel, pawl, pawlspring, lever, and treadle. Fig. 4 is a side elevation of the bridge carrying edge-turning wheel and attachments. Fig. 5 is a front elevation of bridvge,edgewheel,and attachments. Fig. 6 is a front elevation ot' parallel bars, lever, spring, dies, &c. Fig. 7 represents a modification (side elevation) of Figs. 4 and 5. Fig. 8 is a perspective view of the dies, the upper one, F2, being provided with a bar having jaws which are d'esigned to hold work of a peculiar form. Fig. 9 is a transverse section through the line or :o of Fig. 2.

ln the accompanying drawings, the letterA is the frame, which is'made of cast-iron.

B is a balance-wheel, to which is attached the cog-Wheel C. The wheels B and C are rigidly tixed to the main shaft C.

D is a pinion which meshes into the cogs of wheel C.

D2 is a shaft rigidly iixed on one end to pinion D. The other end ot' said shaft rests in a slot, D6, in the bridge E.

D3 is a cutting-wheel which moves loosely on the shaft D2. Said cutter-wheel is provided with a sleeve, D4. Said wheel and sleeve are rigidly united and both move freely on the shaft.

D5 is a 'set-screw united with and passing through the sleeve D4, and securing the same and cutting-wheel D3 to the shaft.

D is a set-screw having a long shank,which passes down through the vertical face E ot' the bridge E, and by means of which cutting- Wheel D3 is pressed against the material to be Cut. y

F is a lever, having a pivot, F5, bymeans of which it is attached to spring-bar H2. To said spring-bar is rigidly attached a vertical post, F6, and to the bottom of said post is the top die, F2.

F4 is a small cross-piece attached to the end l of lever F. Said cross-piece is the fulcrum for the lever, and by means of which the top die, F2, is raised and lowered. The cross-piece F4 rests on the tops of and slides in grooves on the parallel bars F and F10.

F3 is the lower die, which is attached to the grooved bar H3.

H is a broad steel spring connecting bars H2 and H3.

IOO

jaw.

Il' is a set-screw in spring H to increase or by the band receives andencircles the ratchetlesscn the power of said spring.

F and F10 are two fiat parallel bars, fixed at one end to the bridge F2 and at the other end to the bridge E at point D7. Bar F10 has a scale marked on its face.

F2 is a slot in bridge F2.

G is the face of the table,which has a longitudinal groove, G'.

H4 is a screw under the table to secure the adjustable bar H3. and by means of which said bar and dies, also upper bar, H2, are held at any point in the line of the groove; or,in other words, a longitudinal adjustment of those parts is thereby effected.

K is a bar, the rear end of which is secured in a notch or depression in the top die-plate, 172. On the outer end of this bar is formed an adjustablejaw or clamp, whose function is to hold oval and convexed material while being cut.

K' is the adjustable and K2 the fixed under The straight back of the fixed jaw prevents the work from turning that may be placed against it. The dies turn on their respective posts, and thereby permit the bar K to turn while holding work to suit convenience.

K3 is the notch or depression in die F2, into which the end of bar K fits.

I is the edge-turner attached to shaft 15. Said shaft has a crank or handle, 12.

l' is a handle, pivoted at 13 to the shelf 16. A recess or collar, I4, is formed in the shaft l5. The shank of handle I' fits Vin said recess, and by a lateral motion of the handle the shaft l5 and edge-turner I are moved to and from the dies F2 and F3. Said dies are made so that they revolve on their respective posts when holding material, and operated upon by the edge-turner. Said edge-turner is revolved, when desired, by the hand-crank l2. rEhe handle I' moves the turner. to and from the material held by the dies.

17 is part of bridge F". The recess therein is designed to aid in securing the same to the table. The other side of said bridge is secured by any temporary means to the table, so that the bridge can be removed at pleasure. 'lhe edge-turner land dies are designed for circular work. The dies secure. the material, while the turner is revolved upon the edge of saidmaterial. By this means an edge on eircular work can be easily and accurately turned.

J is a ratchet-wheel rigidly attached to the main shaft C'.

causes thepawl to engage the ratchet-teeth and forces the ratchet-wheel to revolve.

JCis a metallic strap or band on the lever J'. Said band is cast or formed integral with the lever. The opening in the lever formed wheel. The pawl is also confined within the lever-opening.

J is a collar on shaft C'. The ratchet-wheel is between said collar and lever J', the ratchetwheel, grooved wheel, and collar being rigidly attached to shaft C'. The lever J' has a bearing on the shaft C' and moves loosely thereon, the shaft at one end being supported in slot G2 of frame A. The treadle, lever, and pawl are thrown up by wire spring J2. The spring acts as a counter-balance for the foot -pressure when the maehineis operated by foot-power.

It will be seen that by starting the ratchetwheel thegrooved wheel M, the shaft C', cogwheel C, and ily-wheel B are set in motion, inasmuch as they are interrnediately connected. The cog-wheel G starts the pinion D, shaft D2, and cutting-wheel D3. The wheels D3 and M are thus respectively given a Areverse motion. The wheel M has a series of beveled grooves on its face M', of. different sizes.

'hen thin metal is to be cut the cuttingwheel D3 is placed in the smallest groove and the metal placed between the wheels. The machine is then set in motion by the foot and the metal is severed. The edge of wheel D3 is beveled.

L is a gage for guiding work to be cut square or straight. 1t has a thumb-screw, L', for securing it to the table. The graduated scale P on the table is to be used in connection with gage L.

R is a vertical finger or indicator attached to the post FG. Then circular work is to be cut it is secured between the dies F2 and F2, and said dies and the bars securing them, H2 and H3, are moved toward the cutter-wheel. The operator is enabled by the aid of fngerR and scale F' of the bar F10 to cut his material to any desired diameter. The dies are intended tohold material to be eut in acireular form, or hold round material, that the edge thereof may be turned by the beveled and adjustable wheel l.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. In a tinners machine, the combination of the treadle N, lever J', strap J5, pawl J3, spring J", collar J6, spring J2, ratchet-wheel J, shaft C', and wheel M, as set forth.

2. The combination of the balance-wheel B, cogwheel C, shaft C', pinion D, shaft D2, cutting-wheel D2, sleeve D4, set-screw D5, and beveled groove wheel M, as specified.

3. The combination of the beveled wheel D3, sleeve D4, shaft D2, set-screw D5, wheel M, bridge E, vand set-screw D', as set forth.

4. The combination ofthe wheels M and D2, sleeve D', shaft D2, and set-screw D, substantially as specified.

5. rlhe cutting-wheel D", sleeve D4, and setscrew D5, fixed to shaft D2, and the adjusting set-screw D', in combination with the wheel M, for the purposes set forth and described.

6. The combination of the grooved wheel IOO IOS

10. The combination of the bridge F", handles I'I2, and wheel I, substantially as set forth.

11. The combination of the bar K, pro- 15 vided with fixed jaw-K2 and movablejew K', and dies F2 F3, substrantially as described, and for the purposes set forth.

In testimony whereof Iaffix my signature in presence of two witnesses.

NATHANIEL G. FAIR.

Witnesses :I

WILL S. ANDERSON, J. J. WOLFORD.

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