US922696A

US922696A - Needle-lubricating device.

Info

Publication number: US922696A
Application number: US31277306A
Authority: US
Inventors: John B Hadaway
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1906-04-20
Filing date: 1906-04-20
Publication date: 1909-05-25
Anticipated expiration: 1926-05-25

Description

J. B. HADAWAY.

NEEDLE LUBRIGATING DEVICE.

APPLICATION FILED 11193.20. 1906. 4 922, 9 I Patented May 25, 1909.

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JOHN B. HADAWAY, OF BROOKTON, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MA- CHINERY COMPANY,- OF PATERSON, NEW J ERSEY, A CORPORATION OF NEW JERSEY.

NEEDLE-LUBRIGATING DEVICE.

Application filed April 20, 1906.

To all whom it may concern:

Be it known that 1, JOHN B. HADAWAY, a citizen of the United States, residing at Brockton, in the county of Plymouth and State of Massachusetts, have invented cer tain new and useful Improvements in Needle- Lubricating Devices; and I 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.

The present invention relates to needle lubricating devices for wax thread sewing machines, and has for its objects, to provide a needle lubricating device which Will act in a certain and reliable manner to apply the de sired amount of lubricant to the needle, to provide a needle lubricating device which will automatically adjust itself for operation on needles of different sizes or to compensate for the wearing away of the part by which the lubricant is applied, to provide a needle lubricating device which requires little, if any, attention on the part of the operator, to provide a needle lubricating device which can be applied to a high speed sewing machine without interfering with the operation of the machine or Without appreciably increasing the wear and strain on any of the parts, to provide a needle lubricating device which does not require to be supplied with lubricating material by the operator except at long intervals, and in general to provide a needle lubricating device having its various parts constructed and arranged to operate in an improved manner.

With the above object in view a feature of the present invention contemplates the provision, in a wax thread sewing machine, of a needle lubricating device movable into and out of engagement with the needle, and a separate reservoir for the lubricating material, supported independently of the lubricating device and arranged to keep the lubricating device supplied with the proper amount of lubricating material. By providing a separate reservoir for the lubricating material, the lubricating device can be'kept continually supplied with lubricating material so as to apply the same amount to the needle at each operation, and thereby the action of the lubricating device made uniform and any liability of either an excessive or an insufiicient amount of lubricant being applied to the needle avoided. The services Specification of Letters Patent.

Patented May 25, 1909.

Serial No. 312,773.

of the operator to supply the machine with lubricating material for the needle are required only at long intervals. Also the movable lu bricating-device can be comparatively small in size so as to be capable of a rapid movement without affecting the operation of the other parts of the machine.

Another feature of the invention contemplates yieldingly mounting the lubricating device so that it is allowed to yield when brought into engagement with the needle whereby a sufficient pressure upon the needle is insured to cause the required amount of oil or other lubricant to be deposited on the needle and the lubricating device can automatically adjust itself for needles of different sizes or to compensate for the wearing away of the parts of the lubricating device which contact with the needle.

In addition to the features of invention above referred to, the present invention also consists in certain devices, combinations and arrangements of parts hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art from the following description.

The present invention is intended pri marily as an improvement on the needle lubricating device disclosed in the patent to J. T. Rush, No. 641,330, dated January 16, 1900, and is particularly adapted for use in curved hook needle shoe sewing machines of the class disclosed in the patent to Z. T. French and WV. O. Meyer, No. 473,870, dated April 26, 1892. It is to be understood however, that except as defined in the claims the present invention is not limited to use in any particular form of wax thread sewing machine nor except where such limitation is stated in the claims, is the present invention limited to any specific construction or arrangement of parts.

The various features of the present invention will be clearly understood from an inspection of the accompanying drawings in which- Figure 1 is a detail view in side elevation of a portion of curved hook needle shoe sewing machine with the preferred form of the invention applied thereto, so much only of the machine being illustrated as is necessary to show the connection of the present invention therewith. Fig. 2 is a detail view in side elevation similar to Fig. 1 with the shuttle case and oil reservoir omitted and showing the parts in a different position, and Fig. I der the force of the spring 15. The lubricat- 3 is a detail plan view, partly in section, of ing device is thus yieldingly mounted so as the needle lubricating device and the needle actuating lever upon which it is mounted.

Referring to the drawings 1 indicates the curved hook needle, 2 the needle segment, 3 the cap by which the needle is secured to the needle segment, 4 the needle guide, 5 the stud upon which the needle segment and needle guide are mounted, 6 the curved rack upon the hub of the needle guide, 7 the pinion meshing with the rack 6 and actuating the needle guide, and 8 the needle segment actuating lever provided with rack teeth meshing with rack teeth upon the needle segment, these parts being constructed and arranged to operate as in the machine of the French and Meyer patent above referred to.

The needle lubricating device comprises a hollow box 9 which is provided in one side with an opening through which a plug 10 of absorbent material, preferably felt, projects, as indicated in Fig. 3. The box 9 is adapted 1 to receive a small quantity of oil which is taken up by the felt plug 10 and held thereby until it is applied to the needle. The box 9 is moved so as to bring the projecting end of the plug 10 into the path of movement of the needle during the backward stroke of the needle and to this end is carried upon the needle segment actuating lever 8, being mounted thereon so as to project beyond the front end of the lever a sufficient distance to cause the plug 10 to contact with the needle when the lever is in its lowest position as indicated in Fig. 1. The movements of the lubricating device toward and from the needle are thus produced in substantially the same manner as in the construction disclosed in the patent to Rush above referred to. 111 the construction disclosed in the Rush patent however, the lubricating device is mounted rigidly upon the needle segment actuating lever, so that the pressure of the absorbent material of the lubricating device against the needle varies as the absorbent material becomes worn away, and also varies with different sizes of needles. In the illustrated embodiment of thepresent invention the lubricating device is yieldingly mounted upon the needle segment actuating lever, the shank 11 of the device being pivotally mounted upon a vertical stud 12 projecting from a block 13 secured to the needle segment actuating lever and being provided at its rear end with a projection 14 which is acted upon by a coil spring 15 seated. in a recess formed in a projection 16 from the block 13. The shank 11 of the lubricating device is also provided at its rear end with a projection 17 arranged at right angles to the projection 14 and cooperating with the projection 16 on the block 13 to limit the swinging movement of the lubricating device unto be capable of swinging laterally, the swinging movement in either direction being limited by the contact of the projections 14 and. 17 on the lubricating device with the fixed projection 16. The lubricating device is held normally in the position indicated in Fig. 1, in which position the projecting end of the plug 10 is in a vertical plane with the needle 1. By reason of the yielding connection between the lubricating device and the lever 8, the lubricating device is allowed to yield laterally as the plug 10 engages the needle and thus the plug is pressed against the needle with sufficient force to deposit the [required amount of oil upon the neez'lc.

The extent of the lateral movements permitted to the lubricating device is sufficient to enable the lubricating device to automatically accommodate itself to'needles of different sizes and to exert the required pressure upon the needle regardless of the wear ing away of the plug 10.

In accordance with a feature of the present invention the lubricating device is supplied with oil from a reservoir supported independently of the lubricating device. In the illustrated embodiment of the invention the lubricating device consists of an oil cup of well-known construction supported in an arm projecting upwardly from the shuttle case 18 of the machine. This oil cup is indicated at 19, and since it is of well-known construction, has not been illustrated in detail and need not be specifically described; It may be said, however, that the cup comprises a delivery tube 20 and that the flow of oil through the delivery tube may be regulated by an adjusting nut 21 at the top of the cup. The oil cup is so located inthe machine that the delivery tube 20 is above and in vertical alinement with the hollow box 9 of the lubricating device, the lubricating device moving toward and from the delivery tube and being always in a position to receive any oil which drops from the lower end of the tube. The flow of oil through the delivery tube 20 can be so regulated that practically all of the oil received in the box 9 of the lu- T in lubricating the needle is maintained uniform without any attention on the part of the operator. Since the lubricating device is automatically supplied with oil from a separate reservoir it can be made of such a size as not to add appreciably to the weight of the needle segment actuating lever and thus interfere with the operation of the machine when run at a high rate of speed or increase the wear or strain upon the operating parts.

The nature and scope of the present invention having been indicated and the preferred form oi the invention having been specifically described, what is claimed is:

1. A wax thread sewing machine, having,

in combination, a needle, a needle lubricating device movable into and out oi engagement with the needle, and a reservoir for lubricating material supported independently of the lubricating device and arranged to supply lubricating material thereto.

2. ii wax thread sewing machine, having, in combination, a needle, a needle lubricating device movable into and out 01' engagement with the needle, and means for yieldingly pressing the lubricating device against the needle while in engagement therewith.

3. it. wax thread sewing machine, having, in combination, a needle, a reservoir for lubricating material provided with a delivery tube, and a needle lubricating device movable toward and from the needle beneath said delivery tube.

4. ll wax thread sewing machine, having,

in combination, a curved hook needle, means [or oscillating the needle, a needle lubricating device carried by said means, and moved thereby toward and from the needle, and means for yieldingly pressing the lubricating device against the needle while in engagement therewith.

.5. I; wax thread sewing machine, having, in combination, a curved hook needle, a needle lubricating device, movable toward and from the needle in the plane of the path oi movement 01' the needle, and. means for yieldingly pressing the lubricating device laterally against the needle while in engagement therewith.

6. Awax thread sewing machine, having, in combination, a curved hook needle, a needle segment, a lever for actuating the segment, and a laterally yielding lubricating device mounted on the lever and moved thereby toward and from the needle in the plane of the path of movement of the needle.

7. A wax thread sewing machine, having, in combination, a curved hook needle, a lubricating device movable in a vertical plane toward and from the needle, and a reservoir located above the lubricating device supported independently of the lubricating device and arranged to deliver lubricating material thereto.

8. A. wax thread sewing machine, having, in combination, a curved hook needle, a needle segment, a lever for actuating the segment, a needle lubricating device mounted on the lever and moved thereby toward and from the needle, and a reservoir provided with a delivery tube arranged to deliver lubricating material to the lubricating device.

9. A wax thread sewing machine, having, in combination, a needle, a needle lubricating device movable toward and from the needle comprising a hollow boX and absorbent material projecting therefrom, and means for yieldingly pressing the hollow box toward the needle while the absorbent material is in contact with the needle.

In testimony whereof I afilX my signature, in presence of two witnesses.

JOHN B. HADA VAY.

Vr' itnesses HonAon VAN EvEnnN, FRED O. Fisn.