US721885A - Jacquard-machine for looms. - Google Patents

Description

PATENTED MAR. 3,1903;

K G I L B A G L W & E L

JAGQUARD MACHINE FOR LOOMS.

APPLIOATIOH FILED OUT. 3, 1902;

no MODEL.

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WITNESSES:

' ATTORNEYS mam PETERS :0, mm

UNITED STATES PATENT OFFICE.

JOSEPH E. GARLICK AND WALTER J. GARLICK, OF PATERSON, NEW JERSEY.

JACQUARD-MACHINE FOR LOOMS.

SPECIFICATION forming part of Letters Iatent No. 721,885, dated March 3, 1903. Application filed October 3, 1902. Serial No. l25|730. (No model.)

To all whom it may concern:

Be it known that we, JOSEPH E. GARLIOK and WALTER J. GARLIOK, citizens of the United States, residing in Paterson, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in J acquard-Machines for Looms; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the ac: companying drawings, and to characters of reference marked thereon, which form a part of this specification.

This invention constitutes an improvement upon that embodied in United States Letters Patent No. 687,223 for jacquard-machine for looms in which the main identifying feature consists in providing a jacquard-machineof the open-shed type with means whereby the card-cylinder is required to act but once on the needles in each cycle of action of the parts instead of twice, as in other machines of this class.

The objects designed to be attained by the present invention will be hereinafter more particularly set forth in describing our improved machine and its operation.

Referring to the accompanying drawings, in which the invention is fully illustrated, Figure 1 is a View in side elevation of said machine. Fig. 2 is a view in side elevation of a detail; and Fig. 3 is a top plan view of the same detail, together with other parts.

In general features of operation and as to most of the parts there is complete identitybetween our aforementioned patented machine and that constituting the present invention. It will thereforebe unnecessary for us to refer to parts of the machine other than those having to do directly with the changes going to make up the improvement.

In our patented machine the upper grid has its up-and-down motion in the frame of the machine imparted to it through verticallyreciprocating rods which carry it and which are guided in the frame, said rods being suspended from certain oscillating parts designated cranks through pitmen. This form of connection between the cranks and the rods which carry the upper grid is such that the approach of the grid to its lowermost stopping-point is not gradual enough, with the consequence that an appreciable jar existed or at least seemed to exist. The principal reason for this is that the said connection between the cranks and the rodsnamely, the pitmen-is direct and is not capable of undergoing any lost motion. In order to overcome this abrupt stopping of the upper grid as it reaches its lower limit of movement, we have not only altered the connections between the parts which correspond to the cranks aforementioned and the rods which carry the grid, but have changed the construction of the cams which actuate said parts, with the result that the grid is caused to approach its lower limit of movement quite gradually,

though without interfering with the proper operation of the machineas a whole.

In carrying out this object of the invention the vertically-sliding rods a, which carry the upper grid 6, are connected with the oscillating parts or cranks (marked 0 in Fig. 1) byjointed connections d. The cranks being provided with detents (hereinafter to be described) are at the proper timenamely, onthe downstroke of the gridimpinged against the connections at their joints and cause them to buckle, the consequent and desired effect being that while their upper ends move at the same rate at which the cranks move their lower ends'gradually move more and more slowly, which latter motion is directly imparted to the grid by the direct connection afiorded between said lower ends of the connections and the grid by the rods a.

The cranks aforementioned are illustrated in detail in Figs. 2 and 3, where is shown the one which is on the near side of the machine as it appears in Fig. 1. It will be understood that the one on the farther side of the machine is exactly like this one except that it is the reverse of it in every respect. The crank comprises two members e and f, secured together by means of bolts g, penetrating fitting-holes in one of these parts and longitudinal slots h in the other, so that they are rendered adjustable longitudinally. To insure their being securely fixed against movement after being once adjusted, their engaging faces are serrated, as at i. The member e is provided with the stub-shaftj, affording the pivot for the crank, this being journaled in the frame 7c of the machine, preferably in the upper part thereof, and provided with a retaining-nut Z. The memberfhas a downwardly-projecting arm m, provided with a projection 12, (which may be an antifriction-roller,) which is adapted to impinge against the jointed connection (1 at the joint therein, it being remarked that this connection preferably comprises a relatively long pitman 0, which is pivotally connected with the adjacent rod a at its lower end, and a relativelyshort link 12, which is in turn pivotally connected with the free end of the member (2 of the crank, as at q, so that thus the joint between the pitman and the link at r is brought into the path of movement of the projection 72. The cranks are actuated so as to impart actuation to the grid from the cams .9, said cams having their center of rotary movement at t in the frame 70. u designates the slot in one of these cams, in which moves an antifriction-roller or other form of projection v, which is carried by, preferably, the member 6 of the crank. In our patented machine the disposition of the slots in the cams was such that when the cranks were in their lowermost positions their projections engaged the slots at the points of the latter which were the farther from the center of rotation of the cam. In the present instance the slots are disposed so that at the same position of the cams their projections engage the slots at the points of the latter which are the nearer to the center of rotation of the cams. In other words, the slots are relatively reversed. The difference in the disposition of the slots in the two machines resolves itself into an advantage in our present machine over the patented machine in that as the cam approaches its lower limit of motion it is caused to impart to the crank a motion which is gradually growing slower (as the grid falls) than faster. Thus both by changing the form of the connection between the cranks and the rods a and the disposition of the slots in the cams the desired object above pointed out is rendered attainable. In our patented machine the initial outward movement of the knife-frame (marked 43 in the patent) was imparted thereto by levers which were engaged by tappets on the cranks. In the present instance instead of placing the function of actuating these levers (marked 20 in the accompanying drawings) on the cranks the cams 8 'move the levers, being provided with antifriction-rollers m, which engage the lower ends of the levers 10, said levers being for this purpose preferably provided with downwardly-projecting extensions y. When the cams rise, the rollers w impinge against said extensions y, pressing the same and the knife-frame z forward, so that upon the subsequent fall of the knife-frame it will retain back temporarily such needles 2' as have been selected by the card-cylinder 1 to determine which hooks 2 are to drop. The change is not only more expedient in the presentinstance, where the construction of the cranks has been so altered that it would not be practical to employ them to operate the levers, but results in an action which is effected with less exertion of power, less friction, and more positiveness.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. Ina jacquard-machine, the combination of the frame, a grid, actuating means for the grid, operative connecting means between said actuating means and the grid comprising a jointed member, and means for buckling said member at the joint therein, substantially as described.

2. In a jacquard-machine, the combination of the frame, a grid, a crank, a jointed member connected with said crank at one end, operative connecting means between the other end of said jointed member and the grid, and a detent carried by said crank and engageable with said jointed member to buckle the same at the jointtherein, substantially as described.

3. In a jacquard-machine, the combination of the frame, a grid, a cam, an actuating part engaging the cam, and operative connecting means between the actuating part and the grid, the end portion of the acting surface of said cam which is engaged by said part while the grid is adjacent its lowest limit of movement being nearer to the center of movement of said cam than the remaining portion of said surface, substantially as described.

4. In ajacquard-machine, the combination, with the frame, the grid, the hooks and the needles controlling said hooks, of a knifeframe adapted to engage said needles and temporarily retain them in their pressed-back positions, a cam, operative connecting means between the cam and the grid, and a movable part connected with said knife-frame, said movable part being adapted to be actuated by the cam, substantially as described.

In testimony that we claim the foregoing we have hereunto set our hands this 6th day of September, 1902.

JOSEPH E. GARLICK. YVALTER J. GARLICK.

\Vitnesses:

JOHN W. STEWARD, JAMES B. NEWTON.

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