US2264166A - Fur nailing pincher - Google Patents

Description

` Nov. 25, 1941.

A. LlPso 2,264,166 FUR NAILING PINGHER Filed March 23, 1939 Iigfla I Patented Nov. 25, 1941 UNITED STATES PATENT OFFICE FUR NAILING PINCHER Abraham Lipson, New York, Y. Application Marel; .23, 1939, serial No. 263,725

4 Claims.

This invention relates generally to the art of the treatment of furs and more particularly to improvements to what are known in the art as fur nailing pinchers.

The invention disclosed in the present applica tion embodies certain improvements over that disclosed in my co-pending application Ser.' No. 245,666, filed December 14, 1938, as is set forth in greater particularity hereinbelow.

In the preparation of the various pelts used in the fur art for subsequent inclusion into garments which are usually made up of a plurality of these pelts which are sewn together, it is the usual practice to stretch and shape these pelts prior to sewing them together, by spreading them to the requisite shape on a board and nailing them in place until they set in the desired configuration.

Where the size of the pelt is small or for the pur-pose of fur pattern, the pelt is sub-divided, the operation of stretching and shaping the pelt and' nailing it to the board may take considerable time and consequently raise the cost of the iinished garment. As for example, the average mink coat requires from 1,800 to 2,300 pins or nails. That this is a tedious and diicult process may be realized because frequently the distance between the rows of pins which fasten the edges of the skins to the board may be as small as 1 to 2 inches.

It is an object of the present invention to so improve the known fur nailing pinchersppresently used in the art so that the skilled furriers dexterity and speed is increased and the apprentice furrier is enabled, after a short training period to reach the speed of men more skilled and with far greater experience. Heretofore the operator 4in working on the stretching and shaping board usually placed a small pile of nails or pins at a point remote from the actual point on the board which he was engaged in stretching a skin. With one edge of the skin already fastened to the board by the pins the other edge of the skin (assuming a right handed person) is fed into the jaws of the pincher, and the pincher is compressed and pulled by the right hand. It is then necessary for the left hand to secure a pin from the pile and return to the point where the pincher jaws have held the skin. The pin is then'inserted through the skin into the board by the left hand and is then driven into the board by means of striking the same with the pinchers after they have been released from the edge of the fur. Some workers may attempt to keep a supply of the nails or pins in their left hand but this irlterferes with the dexterity of the left hand in shaping and spreading the pelt. In accordance with the present invention, 'this process is vastly improved as will be `more'fully discussed below.

Another object herein lies in the provision of means in combination with a fur nailing pincher which are adapted to hold a plurality of pins or nails on the pinchers and from which they may be manually fed with great speed. Another object herein lies in the provision of novel structure for holding and advancing the pins or nails used in fur stretching and which is simple in construction so that the same may be readily adapted to fur pinchers alreadyin use or may be incorporated with the same when they are manufactured.

A still further object herein lies in the provision of pin holding and advancing structurein combination with a fur nailing pincher which permits adjustment to suit 'the habitsof various operators.

A further object of the present invention lies in the pin holding and advancing structure being of streamlined shape and being extremely light in weight so that the natural balance of the pinchers is not disturbed. The novel pin holding and advancing structure herein is of simple construction so that the same may be manufactured lat relatively low cost and may be readily applied to all fur pinchers in use. 'Y

In accordance with the present invention as compared with that disclosed in my'co-pending application referred to above, the number of pins which may be held on the fur nailing pinchers at one time, the facility of operation, and adaptability of the parts to suit various users is greatly increased. These objects and furtherfeatures and ad- `40 vantages will more fully appear in the progress of this disclosure and as pointed out in the appended claims. t

In thedrawing forming an important .part of this disclosure and in which similar referl45 ence characters designate corresponding parts throughout the several views:

Fig. 1 is a left side elevational View of ar known fur nailing pincher which has been altered to adapt it for receiving the pin holdingand ad- :50 vancing means and maintainingsame in operative position. The movement of the jaws and handles of the pincher is indicated by dot-dash lines.

Fig. 2 is a view taken similarly to Fig. 1 show- 55 ing a right side elevational View of the fur nailing pinchers illustrated in Fig. 1 with the pin holding and advancing means in place, and in the retracted position thereof.

Fig. 3 is a plan View of Fig. 2 with the handle end of the fur nailing pinchers broken away. In this view a few pins are shown for the purpose of example, while in normal use the pin holding means holds a considerably greater number of pins, the same has not been illustrated for purpose of clarity in the drawing.

Fig. 4 is a front elevational view of the pin holding and advancing device as removed from the fur nailing pinchers, as would lbe seen from the right side of Fig. 3.

Fig. 5 is a rear elevational view of the pin holding and advancing device as removed from the fur nailing pinchers, as would be seen from the left side of Fig. 3. p Y

Fig. 6 is a fragmentary central vertical sectional view as seen from the plane 6-6 Von Fig. 3. In this view the pin holding advancing device is in the extended or advancing position thereof, while the retracted position is illustrated -in dot-dash lines.

Fig. 7 is a horizontal sectional view as seen from the plane 11 on Fig. 4. In this view the extended or advancing position of the pin holding device is 'indicated in dot-dash lines.

Fig. 8 is a plan view of a substitute operating handle adapted for use by operators having medium sized fingers or one who desires to hold the fur nailing pinchersY ata point nearer the ends Yof the handles Aof said pinchers.

Fig. 9 Vis a view taken similarly to Fig. 8 and showing a still longer operating handle.

Fig. 10 is a central vertical sectional view of the vreplaceable .magnetic element as removed from 'the pin holding means. This magnetic element is also seen in Figs. V3 and 6.

Fig. 11 is a side elevational view of a second form of the replaceable magnetic element.

Fig. l2 is a central vertical sectional View of a third form of the replaceable magnetic element as removed from the pin holding means.

The fur nailing pinchers generally indicated by numeral I0 are of plier like construction having members` I I and I2 which are pivotally interconnected by means of the rivet pin I3. The member I I comprises a lower jaw I4, a central portion IVE-and a palm engaging handle I6. The member I2 comprises an upper jaw I1, a central portion I8 and a finger engaging handle I 9. 'The jaws I1 and I4 adjacent the tips 20 and 2| thereof are provided on the inner opposed surfaces thereof with -corrugations 22 and 23, while the *l outer face of the lower jaw I4 adjacent the tip 2| is provided with pin head engaging corrugations 24. The jaw I1 is provided with orifices 25 and 26, the lower entrances of which are suitably -countersunk (see Fig. l).

The pin holding and advancing device 3U includes generally the pin holding means 3I and the advancing and mounting means 32. The advancing and mounting means 32 comprises a base plate 33 which` `is generally L- shaped including an upper `jaw engaging plate 34 and two upwardly and outwardly extending integral ears V35 (see Fig. V5)

The plate 34 and ears 35 are vpreferably composed of aluminum, duraluminum or other Ylight relatively non-magnetic material. The under surface of the plate 33V is shaped to conform to the upper surface of the upper jaw I1 and is secured thereto .preferably by means of two flat head machine screws 40 and 4I which penetrate the orifices 25 and 26 respectively and engage correspondingly disposed threaded orifices in the base plate 33. The ears 35 are provided with threaded orifices 63 which support horizontally disposed guide arms 6I. The guide arms 6I are preferably formed by rods 62 circular in cross Section having their rear ends 63 reduced in size and threaded, and engaged within the orifices 60, and having their forward ends provided With slotted integral heads 64. The central portion of the rods 62 thus forms the long unthreaded shank of a screw and the rear edge of said portion forms a shoulder which abuts against the forward vertical surfaces of the ears 35 thereby properly aligning the guide arms so that they are parallel and spaced from each other and from the base plate 33. The shoulder formed at the rear end of the central portion of the rods 62 also serves to strengthen the connection of these rods to the ears 35.

Turning now to the pin holding means 3I, there is seen a pin container, cup or reservoir 65, the conguration of which is best seen in Figs. 3 to 6 inclusive. The upper portion thereof comprises generally a shallow pan 66 preferably having parallel and longitudinally disposed side walls 61 and opposed semi-circular ends 68 and`69.

The bottom portion of the pan 36 is integral with a pan base 16 which is generally rectangular in shape and somewhat shorter than the longest dimension of the pan 66.

The function of the pan base 10 is to support the pan slidably on the guide arms 6I and also to removably contain the replaceable magnetic element 41. For this reason, the combined pan 66 and its integral base are cut away wherever possible to reduce the weight thereof without sacrificing any material which is requisite for the strength of the device. This configuration is clearly illustrated in the drawings and includes the rounded ends 1I and 12, oppositely and longitudinaly disposed grooves 13 and 14.

The lower portion of the pan 66 and the upper portion of the pan base 16 is provided with a horizontally and longitudinally disposedbore 15 having a smooth forward portion 16 and a threaded rear portion 11, rear portion 11 continuing to form an opening 18 in the vrear of the pan 66 and the pan base 10 (see Fig. 5).

The magnetic element 41 is substantially cylindrical in cross section and of a diameter substantially equal to the internal diameter ofthe bore 15 so that the same is slidable therealong. The upper surface 19 of the magnetic velement 41 is preferably flat so that a considerably more effective surface of the magnetic element 41' is exposed in the bottom of the shallow pan 66. The threaded rear portion 11 of the base 15 is adapted to receive a threaded plug 86 which removably secures a magnetic element 41 in place within `the forward portion 16 of the bore 15. The rear end of the plug is provided' with a slot 8| to facilitate the insertion or removal of the plug 80 by means of a screw driver.

The pan base 1D is provided with two spaced parallel bores 82 `and 83 which extend into the pan base from the forward end thereof to a point slightly forward of the rear face 84 of the pan base 13. Short counter bores produce the inwardly extending integral annular shoulders 85 and 66. The internal diameter of the counter bores producing the shoulders 85, 86, is substanti-ally equal to the diameter of the central portions 62 of the guide arms 6I; while the internal diameter of the bores 82 and 83 is substantially equal' to'the 'external vdiameter of the slotted heads 64 of the rods 62.

From a perusal of Fig. 7 it being understood that sufficient clearance of the moving parts with relation to each other is provided, it may be seen that the pan base 10 is slidable along the two guide arms 6I. The shoulders 85 serve to limit the forward movement of the pan base by compressing the spring against the under or inner surfaces of the slotted heads 64. The rear face 84 of pan base 1D reaches a rear limit by striking against the forward vertical surfaces of the ears 35. The pan base 10 is normally resiliently maintained in the rear or retracted position thereof by the action of expansive coil springs 81 which encircle the central portions ofthe guide arms 6I and are disposed within the space existing between the outer surface of the rods 62 and the inner surfaces of the bores 82 and 83.

,Since the pan base 10 together with the pan 66 is maintained in position by the guide arms 6I it may be seen that the pan and base may be replaced or springs of different tension may be substituted merely by disengaging the two threaded ends 63 of the guide arms 6I. This operation may be readily performed by means of a screw driver engaging the slotted heads 64.

'Ihe groove 13 isY shortened in order to accommodate a recess 99 in the side of the pan 66 and the base 10 and this recess is provided with a downwardly extending operating arm 9| which issecured in place by a at head machine screw 92 which engages the pan base adjacent thereto. The lower end of the arm 9| extends outwardly at 93 and is provided with a longitudinally directed threaded orifice 94. The orice 94 is adapted to receive the threaded forward end of a shank 95 having an integral operating button 96.

Figs. 8 and 9 show shanks 95 and 95" respectively having operating buttons 9S' and 96" and threaded ends 91' and 91". It is a simple screwing operation to remove the shank, 95 from the orifice 94 and substitute therefor either of the Shanks 95' or 95" thus allowing an adjustment to suit the requirements or fancy of the individual operator manipulating the present fur nailing pinchers. While three sizes are shown on the drawing, it is obvious that other sizes may be incorporated.

In Fig. 11 showing a second type of magnetic element 41 the upper surface thereof in addition to being flattened as at 18' is also provided with a central depression 98'. This depression causes the formation of two opposite poles 99 and H19. A concentration of magnetic flux occurs between these poles and the pins or nails for which the present device is especially adapted, act as keepers for the magnetic element.

Fig. 12 discloses a third type of magnetic element in which the magnetic element 41 is provided' with a longitudinally disposed groove or furrow 98" in the top surface thereof and similarly with the device of Fig. l1, a concentration of magnetic eld occurs between the two longitudinally disposed poles 99" and Ill".

The magnetic elements 41, 41 and 41" are preferably composed of material having high magnetic strength, as for example, nickel-steelcobalt alloy known in the magnetism art.

It is desirable that all of the parts described above with the exception of the magnetic elements, be composed of relatively non-magnetic materialsuch as aluminum, aluminum alloys or brass.

Operation.

The pinchers are dipped into a supply of nails or pins 51 and the magnetic element 41, 41 or 41" causes a plurality of these to become attached to itself. The forward rounded front end of the shallow pan 66 serves as a scoop and since the same has a relatively thin curved edge, it facilitates the easy insertion of the entire pan 66 as well as the adjacent parts into the supply of knails or pins. Since because of the relatively small size of the magnet, a great number of nails or pins cann'ot be attached to it directly, the present device takes advantage of the magnetismV temporarily induced into these nails or pins which are directly incontact with the magnet, and utilizes the direct Contact nails as temporary magnets to hold against them -additional nails. The outer or additional nails which are relatively distant from the magnetic element itself are held by progressively weaker magnetic attraction. This is compensated for, however, in that the bordering upper surface of the shallow pan 66 aids in the support of the outermost nails against the attraction of gravity. Furthermore, the inner surface of the shallow pan adjacent the edge thereof by reason of their sloping direction causes the nails or pins to roll toward the magnetic element. that a considerably greater number of nails or pins may be held directly or indirectly by the magnetic element through the use of applicants present invention.

r Assuming the operator to be right handed and one edge of thel skin toI be fastened by a previous nailing operation, the operator shapes the skin and feeds'it into the jaws I'I and I4 with his left hand at the same time stretching the skin by pressing the jaws I1 and I4 together andby pulling the pinchers I9 Vaway from the point at which the skin has been previously fastened. Thev palm of the right hand vengages the handle I6 while the fingers engage the handle I9. VThe little r finger may act upon the portion 58 of the handle I9 for. openingthe jaws. The index finger then engages the button 96, and as the index linger is straightened the entire assembly including the shallow pan 66, the pan base 1D, the magnetic element 41, the threaded plug 86 which serves as a retaining member, and the operating arm 9| are advanced forwardly to a position indicated by the full lines in Fig. 6 of the dot-dash lines in Fig. 7. This brings the pins 51 forwardly so that they lie directly over the tip 20 at which point the thumb andthe index finger or other finger of the left hand may grasp one of these pins without the necessity of raising the left hand from the surface of the skin being treated. 'I'he pin so grasped may then be inserted through the skin and started into the board (not shown). The index finger of the right hand is relaxed allowing the mechanism 30 to become retracted by the action of the springs 81. The jaws I1 and I4 are separated and the edge of the skin is released from the corrugations 22 and 23. The corrugated surface 24 and the forward portion of the tip 2l is then used as a hammer to drive the pin securely into the board. Because of the relatively light weight of the pins 21 and the high magnetic strength of the element 41, together with the peculiar construction of the adjacent parts as hereinabove set forth, the pins remaining within the shallow pan 66 are not jarred loose therefrom by said hammer blow, an

'Ihe net result of all of this is amount suicient to cause them to fall from the pan. If the hammer blow should be suiciently strong to jar the pins loose from actual contact with the magnetic element, the sloping internal walls of the shallow pan and the general coniiguration thereof Will cause the pins to roll or move by the action of gravity to a position in which they are securely held by the action of the magnetic element.

In order to make adjustments to suit the convenience, or size of pins, or operating .habits of the operator the threaded plug 80 may be removed and the magnetic element may be removed for the purpose of remagnetization, if such is necessary, or the magnetic element may have substituted for itself another magnetic element of different size or configuration. As will be obvious, the arm 9i and the button 96 may be disposed on the opposite side of the pincher when it is intended that the tool be used in the left hand.

It may be thus seen that I have provided a novel combination pin holding and advancing fur nailing pincher which is simple in construction, economical to manufacture, efficient and serviceable and which marks a definite improvement in the art of treating furs, making the general cost of producing sewn fur garments cheaper by reason of the time saving factor which it provides.

I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described, for obvious modifications will occur to a person skilled in the art.

I claim:

l. Fur nailing pinchers comprising: magnetic pin holding means associated with one of the jaws of said pinchers and adapted for rectilinear movement longitudinally of the jaw and pinchers, said magnetic means including a pan and a magnetic element removably disposed in the base of said pan; manually operable slidably mounted means to advance said magnetic means along said jaw, and resilient means acting to move the magnetic means to the retracted position thereof whereby said magnetic means may be maintained normally in the retracted position thereof at a point removed from the operating tips of said pinchers and may be manually shifted to the advanced position thereof adjacent said tips.

2. In a fur nailing pincher: a base plate adapted to engage the upper jaw of said pincher, said plate having an upwardly extending integral ear; a horizontally disposed guide arm supported at one end thereof by said ear; a pin container in the form of a shallow pan having a longitudinally disposed bore penetrated by said guide arm and slidable therealong to a retracted position at a point removed from the operating tips of said pinchers or to an advanced position at a point adjacent said tips; spring means to normally maintain said pan in the retracted position thereof; and a downwardly extending operating arm connected to said jaw whereby the pan may be manually shifted to the advanced position thereof.

3. Fur nailing pinchers comprising: pin holding means including a pan having an open top associated with one of the jaws of said pinchers and adapted vfor rectilinear movement longitudinally of the jaw and pinchers, and means to reciprocate said pin holding means along the said jaw whereby said pin holding means may be maintained in a retracted position thereof at a point removed from the operating tips of said pinchers and in the advanced position thereof may be moved to a point adjacent said tips.

4. In a fur nailing pincher: a base plate adapted to engage the upper jaw of said pincher, said plate having an upwardly extending integral ear; a horizontally disposed guide arm supported at one end thereof by said ear; a pin container in the form of a shallow pan having a longitudinally disposed bore penetrated by said guide arm and slidable therealcng to a retracted position at a point removed from the operating tips of said pinchers or to an advanced position at a point adjacent said tips; spring means to normally maintain said pan in the retracted position thereof; a downwardly extending operating arm connected to said jaw whereby the pan may be manually shifted to the advanced position thereof a magnet; anda secondary bore in the lower portion of said pan adapted to replaceably receive said magnet.

ABRAHAM LIPSON.

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