US1193420A

US1193420A - A cobpobation of

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Publication number: US1193420A
Authority: US
Publication date: 1916-08-01
Anticipated expiration: 1933-08-01

Description

F. H. PIERPONT LOW QUAD MECHANISM FOR TYPE MACHINES.

APPLICATION FILED JAN. 9 1914.

Patented Aug. 1, 1916.

3 SHEETS-SHEET l- F. H. PIEHPONT.

LOW QUAD MECHANISM FOR TYPE MACHINES.

APPLICATION mu) mp9. 1914.

l ,1 93,420. Patented Aug. 1,1916.

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F. H. PIERPONT.

LOW QUAD MECHANISM FOR TYPE MACHINES.

APPLICATION FILED JAN. 9. 19M.

Patented Aug. 1, 1916.

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BEAN K HINMAN PIERPONT, OF HORLEY, ENGLAND, ASSIGNOR T9 LAN$TON IVIONO'IYPE MACHINE COMPANY, 01? PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF VIRGINIA.

LOW-QUAD MECHANISM FOR TYPE-MACHINES.

Application filed January 9, 1914.

To all whom it may concern:

Be it known that I, FRANK H. PIERPONT, a citizen of the United States, residing at Horley, county of Surrey, England, have invented certain new and useful improve ments in Low-Quad Mechanism for Type- Machines; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, and to the figures and let ters of reference marked thereon.

This invention relates to type casting machines wherein a matrix is remo mbly applied to and clamped upon a mold furnished with a main and a supplementary mold blade, two mold blades, or other form of cut-off device whereby full size types or low quads or spaces can be produced at will, and wherein the movements of the supplementary blade or cut-oif are controlled through the matrix-clamping mechanism, a variation in the travel or movement of which is produced by special matrices or blanks in the die-case. In mechanism of this class as hitherto constructed, parts at least of the op erating mechanism have been carried by the members of the matrix-clamping device, and as these parts are of considerable weight they .tend to interfere with the accurate movements of the clamping devices; further, as the time in which the movements of the blade should be effected is short, any tendency to delay is objectionable as often the diecase is seated upon the mold and presses on the blades before the supplementary blade has been positioned.

It is the chief object of the present invention to overcome these drawbacks and to provide mechanism so contrived that while it is controlled from the matrix-clamping devices any part carried by or actuated by :1 member of the clamping devices is very light so as to offer no appreciable resistance,

4 and the other parts are either carried upon fixed supports or are carried by parts which will. not be adversely aifected by their weight.

According to the present invention, the supplementary blade which is independent of the main blade is moved in both directions or has its movement controlled in both directions by an interponent which is carried by an operating member of the matrixclamping mechanism and is positioned rela tively to the operating member by the mem- Specification of Letters Patent.

Patented Aug. it, 1916.

Serial No. s11,25o.

ber of the clamping mechanism the travel of which is varied by the presentation of a spec al matrix or blank. The interponent acts in turn upon a rocking lever and in accordance with the position it has been set it rocks this lever in one or other direction to positively position the supplementary blade. Preferably two such levers are employed which are coupled with the moldblade, and the interponent, according to its position, rocks one or the other. The interponent is carried upon an extension of the operating lever for the matrix-clamping devices and is so light as to ofi'er little resistance to movement and when operating upon the mold-blatie-shifting mechanism it is reinforced by the part carrying it. The interponent is retained in one position by a spring and is shifted into the other position by a projection on the variably movable member of the clamping devices when the travel of this member is interfered with by the presentation of a special blank or matrix in the diecase.

Referring to the accompanying drawings illustrating a preferred form of embodiment, Figure l is an elevation of mechanism according to the present invention applied to a machine having matrix-clamping mechanism or devices of known construction. Fig. 2 is an end elevation of Fig. 1. Fig. 3 is a plan of Fig. 1. Fig. i is a similar view to Fig. 2, but showing the interponent in engagement with one of the actuators. Fig. 5 is a similar view to Fig. i showing the interponent in engagement with the other actuator, and Fig. 6 is a sectional view showing the mold and its main and supplemental blade or cutoff.

The invention is shown applied to a type casting and composing machine in accord ance with Patent No. 625,998, dated May 30, 1899 (British Patent No. 8638/99) and equipped with a mold having a divided mold-blade such for example as is referred to in Patent No. 828,450, dated August 14, 1906 (British Patent No. 18231/06). It will suffice for the purpose of illustrating the invention to designate only the parts of the already existing mechanism shown.

1 is the mold furnished with side blocks between which the main blade 2 and the supplementary blade 3 move to dimension the mold cavity and effect the ejection of the type.

4 is the die-case which is movable to bring any matrix over the mold cavity.

5 is the crosshead to which the diecase supporting frame 6 is coupled.

7 is the intermediate slide or die case carrier.

8 is the die-case lever.

9 is the matrix-centering and clamping plunger.

10 is the main actuating or operating lever which is coupled through a link 11 with the lever 8 and with the centering plunger 9 through a movable head 12 and compression spring 13.

14: is a bridge supporting the die-case and centering plunger mechanisms, and 15 is a slide carrying a cross pin 16 for reciprocating the main mold-blade.

The foregoing are elements of the commercial machines and are fully disclosed in in the prior patents hereinbefore mentioned to which reference may be had for a further description.

On an arm or extension 16 of the lever 10 is mounted an interponent 17 which moves up and down in company with said arm and is also capable of movement relatively thereto in a horizontal direction. The interponent is very light in construction and is pivotally connected to the arm 16 at 18;

it is held normally in one position by a spring 19. The arm 16 -is jointed to the lever 10 so that the latter can continue its necessary centering movement to position securely the plunger after it has moved the arm 16* to the necessary extent. As shown, the arm 16 is jointed at 20 to the lever 10 and is formed with a bridge piece 21 having an adjustable stud 22 bearing against the top side of the lever, a spring 23 being in terposed between the lower side of the lever 10 and the arm 16*. At its outer end the arm 16 is extended laterally and provided with shoulders 24 which limit the throw of interponent 17, and the latter can be made comparatively light and offer therefore comparatively little resistance to movement by its actuating mechanism. Contiguous to the outer end of the interponent 17 are pivoted

tw'o actuators

25, 26 which are pivoted at 27 and 28 respectively to a stationary support. WVhen in one of its two possible positions the interponent 17 on moving down with the arm 16 engages the actuator and turns it about its pivot, and when in its other position, on moving down it engages and turns the actuator 26. The means for moving the interponent consists of a projection 29 on the head 30 carried by the centering pin and supporting the lower end of the compression spring.

When normal or full height type are to be cast, matrices presented have an opening for the reception of the centering pin such that the latter descends far enough to keep the projection 29 at a lower level than the interponent 17 the latter therefore is undisturbed and is held in position by its con trolling spring. On descending with the arm 16 the interponent 17 therefore engages the actuator 25 and moves it so that it turns a lever 31 about its pivot, and as the lever 31 engages the cut-off blade the latter is withdrawn to the same extent as the main blade to dimension the mold for full size type. 7

When low quads or spaces are to be cast, a special matrix or blank, unprovided with a cavity for the centering pin, is presented. The normal travel of the pin is therefore interrupted and the projection 29 engages one end of the interponent 17 as the arm 16 descends past the projection 29, whereby the interponentis moved againstthe action of its spring and engages the actuator 26.

helower end of this actuator engages the opposite side of the same end of the lever 31. as the actuator 25 so that when turningon its pivot it moves the lever 31 in the opposite direction from that in whichthe actuator 25 moves it. Thus the actuator 26 prevents the cut-off section from moving back in company with the main blade, or if the cut-off has been moved back at all under frictional contact with the main blade it moves it forward and shortens the mold cavity. The position of the cut-off or supplementary blade in both directions is pivotally controlled by the mechanism accord ing to this invention. I V

The two actuators are preferably connected by a spring 32 to keep them in contact with the lever 31. In place of the two actuators a single actuator centrally pivoted and having oppositely extending arms for engagement by the interponent and forked at its lower end to embrace the end of the lever 31, could be employed, but such is not advantageous owing to the extent of movement necessary to be given to the interponent to obtain the required leverage. Owing to the manner in which the parts are carried and in which they cooperate, the movements of the cut-ofl blade are effected before the pressure of the die-case and the clamping mechanism come upon the mold.

Having now particularly described and v ascertained the nature of the said invention and in what manner the same is to be performed, I declare that what I claim is 1. In a type casting machine the combination with a m atrix-clamping mechanism embodying an operating member and a variably movable member and a mold provided with a main blade and a cut-off section of an interponent carried by and movable relatively to the operating member for the matrixclamping mechanism and mechanism carried by the variably movable member of the clamping mechanism to position the interponent, an actuator coupled with the cut-oil? section and cooperating with the interponent to position the cutoff section substantially as described.

2. In a type casting machine furnished with a matrix-clamping mechanism having a variably movable member and a mold having a main and a cut-off section, the combination with an operator for the clamping mechanism, of an interponent yieldingly connected with the operator, of a projection carried by the variably movable member of the clamping mechanism and adapted when its travel is interrupted to move the interponent relatively to the operator and 0perating means for the cut-off section controlled by the interponent substantially as and for the purpose described.

8. In a type casting machine furnished with a matrixclamping mechanism having a variably movable member and a mold furnished with a main and a cut-off section, the combination with an operator 1() for the clamping mechanism, of an interponent carried by the operator, a projection on the variably movable member 9, and two actuators separately pivoted to stationary sup ports and arranged to move a lever 81 that is connected to the cut-0E section, substantially as described.

i. In a type casting machine, the combina tion with an actuator 10 of an interponent pivotally and yieldingly coupled with the actuator and a projection 29 carried by a variably movable member 30 of the clamping mechanism to move the interponent and two pivotally supported

actuators

25 and 26 with which the interponent is adapted to engage substantially as described.

5. In a type casting machine, the combination with a matrix clamping mechanism embodying an operating member and a variably movable member and a mold provided with a sectional mold blade, of an interponent carried by and movable relative to the operating member, means intermediate the interponent and variably movable member for positioning the interponent, and means intermediate the interponent and one of the sections of the blade for positioning the latter in accord with the movements of the interponent.

6. In a type casting machine, the combination with a matrix clamping mechanism embodying an operating member and a variably movable member, and a mold provided with a sectional mold blade, of an interponent operated by the operating member with means whereby its position is controlled by the variably movable member, a pair of pivoted actuators mounted in position to cooperate with the interponent and adapted to be swung thereby in opposite directions, and a connection intermediate one of the sections of the mold blade and actuators whereby said mold blade section will be positioned in accord with the movements of the actuator.

7. In a type casting machine, the combination with a matrix clamping mechanism embodying an operating member and a variably movable member and a mold provided with a sectional mold blade, of an interponent operated by the operating member and positioned by the variably movable member, a pair of actuators for one of the mold blade sections, and positioned to cooperate with the interponent whereby the actuators will be moved in one direction or the other in accord with the position of the interponent, and a spring for holding said actuators normally in operative engagement with the mold blade,

section.

FRANK HINMAN PIERPONT. Witnesses R. lVEs'rAoorr, O. J. VVoR'rII.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner or. Patents,

' Washington, D. C.