US1024680A - Harness-stop-motion device. - Google Patents

Description

F. EHINGER.

HARNESS STOP MOTION DEVICE. APPLICATION FILED APR.13, 1911.

1,024,680. Patented Apr. 30, 1912.

2 SHEETSSHEET 1.

F. EHINGER.

HARNESS STOP MOTION DEVICE.

APPLICATION FILED APR. 13, 1911.

1,024,680. Patented Apr. 30, 1912.

2 SHEETS-SHEET 2.

UNITED STATES rATENT orrica. I

FRANK EHINGER, OF NEW BEDFORD, MASSACHUSETTS, ASSIGNOBOF ONE-THIRD TO HARRY BLOOMINGDALE MID ONE-THIRD TO WILLIAM W. LEVY, BOTH OF NEW BEDFORD, MASSACHUSETTS. I

HARNESS-STOP-IMOTION DEVICE.

To all whom it may concern:

Be it known that I,- FRANK EHINGER, a subject of the German Empire, residing at New Bedford, county of Bristol, State of Massachusetts, have invented certain new and useful Improvements in Harness-Stop- Motion Devices, of-which the following is a specification.

The object of this invention is to prov'demeans for. stopping the operation of a lo m in case of breakage of the elevating or depressing connections of one or more of the harness frames.

Other objects will appear and bebetter understood from the following description taken in connection with the accompanying drawing, in which: Figure 1 is a partial front elevation of a loom provided with my improvement. Fig. 2 is a detail side elevation of the device for releasing the stop motion mechanism. Fig. 3 is an end view of the same. Fig. 4 is a detail elevation of one of the rock levers. Fig. 5 is a detail of the stop motion device.

In the drawing which showsone embodiment of my invention, 5 and 6 indicate re-' spectively the frame and arch of the loom. The harness frame 7 is supported by the elevating straps 8 which are trained over shafts 9 on the arch 6 and connected to the dobby levers 10, 10. I In order that the application of .my invention may be better understood I have selected the well known form of transmission mechanism shown in the drawing; It is to be understood, however, that I do not claim this particular transmission mechanism nor do I intend that I shall be limited to. a combination of this particular mechanism with my device; since, the invention about to be described, can be used with all the well known forms of transmission for looms now in use. i v

Referring to the drawing 10 indicates the loom drive shaft having thereon a fast pulley 11, a loose pulley 12, and a brake. ring 13. A controller or shipper lever 14: is fulcrumed on a bracket 15. The controller or shipper moves over aholding plate or guide '16 and is adapted to engage the belt 17 and shift the same from one pulley to the other. A brake shoe 19 is secured to a shaft 20, the said shaft being adapted to turn under the action of a radial weighted arm 21- Specification of Letters Pate nt.

Application filed Am-i113, 1911.

ends of the springs 23, 23.

Patented Apr. 30, 1912. Serial no. 620,913. Y

thereon. The weighted arm 21 is normally restrained against movement when the loom is in motion by means of an extension 22 on the shipper or controller, the said extension being adapted to engage and support the arm 21 when the lever or controller is moved so as to shift the belt ontothe fast pulley as, shown in Fig. '1. When the lever is moved in the opposite direction however,

and the belt is being shifted to the loose pulley, the extension 22 will move from engagement-with the arm, whereby the shaft will turn under the weight of the arm and j the shoe 19 turned into engagement with the ring 13.

The harness is depressed'by a plurality of springs 23, 23 connected in. any suitable manner, such as by hooks 2 1, 24 and rods 25, 25, with the opposite end portion of the frame" 7 The' axle 26 connects oppositely positioned portions 27 and 28 of a stand.

J ournaled on the axle 26 is a balanced lever 29. Referring to Fig. 2 four levers 29 are shown on the axle 26.. This number, however, may be increased or diminished according to the number. of harness frames employed. In the form illustrated I have provided one lever for each frame, but this arrangement need not be adhered to since -theconnections to be described may, be connected to all of said levers, in which event it would be necessary to employ twice as many levers as shown in Fig. 2 if two harness frames were employed and so on.

, In Fig. 1 the lever 29 is held verticalby means of flexible elements 30, 30, the adjacent ends of which are suitably secured to the lower end ofthe lever and the opposite ends of which are connected to the lower The elements 30 are trained over sheaves 31, 31 carried by supports 32, 32 on either side of the stand a. The elements 30 are of such length that when the frame 7 has moved downwardly as far as permitted by the dobby levers 10,- the spring will be tensioned, and of course this tension will be increased during the upward movements of the harness frame. In.

asmuch as the springs 23, 23 are of uniform strength it will. be seen that as long as all of the springs are connected as shown, and the harness working properly, the lever 29 will be held against movement. An arm 33 extends forwardly'from the .end portion 27 of the stand and is provided with spaced lugs 34, which have alining openings to loosely receive a latch bolt 36 formed at one end with an eye 37. The upper end of the lever is formed with a slot which receives a flexible element 88, one end of which is attached to the eye 37 and the opposite end to the portion 28 of the stand a. A keeper 38 has one end portion adapted to engage the latch bolt and at its opposite end is secured to a flexible element 39. The flexible element- 39 is trained over a sheave 40 on one side of the frame 5 and secured to one end of a cross piece a1. A retractile spring has one end secured to the'frame above the sheave 40 and its opposite end is suitably connected to the middle portion of the cross piece all. A flexible element 43 is trained over a sheave 44 arranged on the frame below the sheave l0, then over a second-sheave on the holding plate and is secured at one end to the controller or shipper lever 14 and at its opppsite end is connected to the cross piece a l.

Referring to Fig. 1 it will be seen that when the keeper and latch bolt are in en gagement the spring 42 will be tensioned and the cont-roller or shipper lever moved to one end of the holding plate. ln this position the belt will be on the fast pulley and the parts of the loom operated as usual. ll hen the bolt is withdrawn from engage ient with the keeper however the spring 42 will contract, whereby the flexible element e l-3 will be pulled and the controller or shipper lever moved to the opposite end of the holding plate and the belt shifted to the loose pulley.

In use the harness frame 7 is elevated by the dobby levers 10 through the straps 8 and depressed by the springs 23 and their con nections to the frame. ltn the event of breakage of one of the springs or its con nection to one end portion of the frame, the contractile force of the springs :23 at the opposite end portion of the frame will opcrate to tilt the frame against the action of the unbroken spring at the first-named end portion of the frame. This action of the unbroken springs will rock the lever. 29, and by virtue of the connection between the lever and the element 38 the latter will pull the latch from engagement with the keeper. whereby the belt will be shifted and the brake applied as before described.

In the event of breakage of one of the straps 8 or dobby levers 10 the part of the frame nearer the brake will descend, where by the hinge at the opposite end portion. of the frame will operate the levers and the latch bolt will be withdrawn as before de scribed. lt will of course he understood that the combined contractile power of any two of the springs 23 will er .M-t suflieient noaaeeo tion between the latch bolt and the keeper. ln the event of both dobby levers 10 or the straps 8 breaking simultaneously it is evi dent that with the structure thus far described, and owing to the uniform pull on opposite sides of the lever the same will not operate to withdraw the latch bolt. In order to overcome this defect if such breakage should occur I provide a lever arm 45. This'element is fulerumed on an offset 51 on one side of an angular extension 4-6 carried by the end piece 28 of the stand. The power end portion of the lever underlies the harness frame or frames as the case may be, and is so positioned that in the event of falling of one or more of the frames the same during descent will strike the power i end of the lever. The opposite end portion of the lever 45 is provided with an offset hook 47 to which is secured one end of a flexible element 48, the opposite end portion of which is trained over a sheave 4L9 carried by the end portion 27 of the stand and connected in a suitable manner with the latch bolt 36. The lever 45 is held in the position shown by a spring 60 so that the power end portion of the lever will not fall into the path of movement of the lever 29 when the latter is released as before described.

Having thus described my invention what l claim as new and desire to secure by LettorsPatent is l. lln a loom. the combination of a harness frame. driving mechanism. tension means operatively connecting said driving mechanism with said frame. a movable memleer, tension means connecting said movable member with said frame and adapted to normally hold said member stationary and to coiiperate with said first mentioned ten sion means to reciprocate said frame. automat-ic means for stopping said driving mechanism. a latch device for normally holding said stopping means inoperative, means for moving said movable member when one of said tension means breaks. and

means whereby the movement of said movable member releases said latch device.

9. in a loom, the combination of a harness frame, driving mechanism; a plurality of tension members operatively connecting said driving;- mechanism with said f member mounted on a fixed pivot a plurality of resilient tension members connectsaid pivotally mounted member with said frame and adapted to coiiperate with said first-mentioned tension members to reciprocate said frame, automatic means for stopping" said driving mechanism, means for normally holding" said stopping; .ieans inoperativd and means whereby said stopping means is rendered operative by swinging movement oi: said pivotally mounted mempull on element to overcome the her.

trams, a

3. In a loom, the combination of a harness frame, driving mechanism, tension means operatively' connecting said driving mechanism with said frame, a movable member, tension means connecting said movable member with said frame and adapted to move said.member when said frame becomes disarranged and to cooperate with said firstmentioned tension means to reciprocate said frame, means for stopping said driving mechanism, a spring for actuating said stopping means, a latch device for normally preventing said spring from operating, and means arranged in the path of said movable member and adapted to-be moved by the latter for releasing said latch device.

1. In a loom, the combination of a harness frame, driving mechanism, tension members connecting said driving mechanism with said frame, a lever, resilient tension members connecting said frame with one arm of said lever and adapted' to normally hold said lever stationary, means for stopping said driving mechanism, a latch device for normally holding said stopping means inoperative, and means for releasing said latch device adapted to be actuated by said lever.

5. In a loom, the combination of a harness frame, driving mechanism, tension members connecting the top of said frame with the driving mechanism, a lever mounted on a fixed pivot, resilient tension members connecting the bottom of said frame with one arm of said lever and arranged to normally hold said lever stationary, means for stopping said driving mechanism, means for normally holding said stopping means inoperative, a second lever mounted on a fixed pivot, means for releasing said holding means, and means connecting both of said levers with said releasing means whereby the said releasing means is actuated by moving either of said levers.

6. In a loom, the combination of a plurality of harness frames, driving mechanism, tension members operatively connecting said driving mechanism with said frames, a pluralityof levers, resilient tension members connecting said frames with one arm of said levers and adapted to normally hold the levers stationary, means for stopping the driving mechanism, a latch device for normally holding said stopping means inoperative, and means whereby the movement of one or more of said levers will release said latch device.

7.- In a loom, the combination of a plurality of harness frames, driving mechanism, tension members operatively connecting said driving mechanism with said frames, a plurality of levers mounted intermediate their ends on a fixed pivot, resilienttension members connecting said frames with one arm of said levers and adapted to normally hold said levers stationary, means for stopping the driving mechanism, a latch device for normally holding said stopping means inoperative, a tension member passing through the other arms of said levers and connected with said latch device whereby the movement of one or more of said levers will move said tension member to release said latch member,

Int'estimony whereof I affix my signature in presence of two witnesses.

FRANK EHINGER.

Witnesses:

J. P. DoRAN, F. L. Rooms.

Images