US922447A - Machine for inserting fastenings. - Google Patents

Description

A. BATES & H. P. GAMBLE. MAGHINE FOR vIIQTSERTING; FASTENINGS.

APPLIUATION FILED DEO.7,1906.

30 6 Patented May 25, 1909.

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A. BATES & H. P. GAMBLE. MACHINE FOB. INSBRTING FASTENINGS.

APPLICATION FILED 1330.7,1906.

3 SHEETS-SHEET 3.

Patented May 25, 1909.

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THE NORRIS PETE TINT RTATES ATENT FFIQE.

ARTHUR BATES AND HENRY PERCIVAL GAMBLE, OF LEICESTER, ENGLAND, ASSIGNORS TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Application filed. December 7, 1906.

T all whom it may concern:

Be it known that we, ARTHUR BATES and HENRY P. GAMBLE, subjects of the King of England, residing at Leicester, in the county of Leicester, England,have invented certain Improvements in Machines for Inserting Fastenings, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for in serting fastenings, and has for its object the improvement of that type of fastening-inserting machines in which a plurality of kinds of fastenings are maintained in such relationship to the'inserting mechanism that fastenings of any kind may be supplied for inser tion in accordance with the nature and requircments of the work or portion of work upon which the machine is operating.

The term fastening, as used throughout the specification and claims should be understood to include not only such articles as are intended for attaching to each other two or more pieces of work, but also such articles as are inserted in the work merely for purposes of ornamentation or for resisting wear.

One object of the invention is to provide in a machine of the type specified, means for varying automatically the selective relation ship of the fastening-delivering mechanism and the fastening-inserting mechanism in such manner that the kind of fastening may be suited automatically to the nature or requirements of the work or portion of work into which it is to be inserted.

A further object of the invention is to provide sensitive means for initially determining the relative selective movement of the fastening-delivering and fastening-inserting mechanisms, the relative movements of these mechanisms being effected by means con nected to some moving part of the machine. W'ith such sensitive means the machine is adapted to make selections of fastenings for very slight variations in the work, and the burden of the selective movement is not thrown upon the work and thus the actuation of the initial determining means is not interfered with by other physical properties of the work than those for which selections are to be made.

Still another object of the invention is the provision of means for imparting to the rela Specification of Letters Patent.

MACHINE FOR INSER'IING FASTENINGS.

Patented May 25, 1909.

Serial No. 346,756.

tively movable parts a positive tendency to remain in whatever position with relation to each other they may be placed.

For purposes of illustration, this invention is represented as applied to a loose nailing machine of the kind shown in the pending application of George Goddu, Patent No. 898,573, dated September 15, 1908, although it is obvious that it might be applied to any fastening-inserting machine in which there is provided a relative selective movement between a fastening-delivering mechanism, containing a plurality of kinds of fastenings, and a fastening-inserting mechanism. In the machine of the patent, a plurality of sources of fastenings are provided, each containing preferably a different kind of nail and leading from each source of supply to the inserting mechanism "is a nail guide. Means are provided for changing the relative positions of the nail guides and the nail-receiver, which in this instance is the driver passage in the nose, to bring one or another of the guides into position to deliver the desired kind of nails to the receiver.

In the embodiment of the invention illustrated, work-calipering means are provided which actuate the initial determining means in accordance preferably with the variations in the thickness of the work. The fasteningdelivering mechanism is provided with fas tenings differing in length and the delivering mechanism is connected with. actuating means which operate to move it into position to deliver a fastening of a length suited to the thickness of the work, the direction of movement being determined by the initial deter mining means. The various parts are preferably so timed that the work is calipered at, or approximately at, the point at which the fastening, delivered as a result of the action of the calipering means, is to be inserted. The parts are also so timed. that the relative movement of the fastening-delivering and fastening-inserting mechanisms will not interfere with the separation of the fastening to be delivered from those behind it. As shown, the means which causes the relative movement of these mechanisms is actuated from the awl-operating shaft and is preferably actuated upon the descent of the awl to enter the stock.

The calipering device may consist of any two relatively movable members bearing upon opposite sides of the work. In the form of the invention shown, a movable work-support is pressed up against the under side of the work, pressing thework against a stationary member above and the variations in thickness of the work cause variations in the position of the upper end of the work support. Connected with the work-s11 port and actuated by it, in accordance with the variations in thickness of the work, is mechanism which causes variations in the 006perative relationship of the elements of the means for causing relative movement of the fastening-delivering and fastening-inserting mechanisms whereby such relative movement is controlled in accordance with the said variations in the thickness of the work.

As shown, this mechanism, which may be called the initial determining means or setting means, consists of a rocking member having upon it a reciprocating element which, in the normal operation of the machine reci'procates continually. This element is employed to operate the means that changes the relative osition of the delivering and inserting mec anisms. By a'change in the position of the work-support, a corresponding change is effected in the position of the rocking member and consequently in the path of the reciprocating element upon it. The element operates the changing mechanism in accordance with the position of the path of the element at the moment when the mechanism and element are engaged and this effects the desired change in the selection of the fastening delivered.

In the accompanying drawings which show only so much of the mechanism of a double raceway loose nailing machine as is necessary to illustrate the a plicat'ion of the invention thereto, Figure 1 s h vation a portion of the loose nailing machine with the invention applied thereto; Fig. represents a section of the upper part of the machine at right angles 'toFig. 1 and looking f toward the right in that figure; Fig. 3 is a detail view partly in "section, and viewed from the rearin Fig. 1, of a portion of the raceway-shifting mechanism, and Fig. 4 is a section of aportion of the construction'shown in Fig. 1, viewed from the same direction as r in that figure, Figs. 2, 3 and 4 being drawn to a larger scale than Fig. 1.

Like character's designate corresponding- 1 the setting mechanism 1S secured, ad ustparts in the several views.

In the constructlon shown, 12 represents the standard of the machine carrying the: head 14 in hearings, in which is mounted the The awl bar 18 is 1 operated through connections with the awl-f actuating shaft 20 to cause the awl to be forced down into the stock. In this type of main operating shaft 16.

machine, while the awl is still in the stock a lateral movement is imparted-to the awl bar, by mechanism not shown, to feed the stock over the work-support and bring the 'awl ows in side 'elehole under the driver. The work-support is shown as a horn 22 which is pressed up against the under side of the work under the influence of a spring 23, holding the work against a foot plate 24 while the fastening is being inserted. The horn is depressed after each inserting operation by any suitable or usual mechanism to permit the work to be fed by the awl. The awl shaft has imparted to it an oscillating movement by means of a cam disk 26, having a cam groove 28 in which travels a roll30 upon an arm 32 attached to shaft 20.

A nail raceway 34, having nail-guiding grooves 36, 38 is supplied with nails by a hopper 40, the hopper being so constructed and arranged as to be capable of delivering one kind of nails to groove 36 and another kind to groove 38. The raceway can be shifted to bring either of the grooves 86, 38 into alinement with the driver passage in a nose'or throat 42, so that either kind of nails can be fed as desired into the passage, and subsequently driven by 'a driver 44 into the work. I

From the foregoing description of the oper'ation of the parts of the machine it will be noted that the position of the upper end of the horn 22 is determined by the thickness of the Work clamped between it and the foot plate 24. Advantage is taken of this fact in the construction of the invention illustrated to cause the position of the horn to determine the length of nail that should be driven into the work. To this end, connections are provided between the horn and an initial determining mechanism or setting device, so that the nail change will be governed by the thickness of the work.

As illustrated, the horn 22 is connected to one end of a lever 46 pivoted at 48 upon the frame of the machine, the other end of the lever being connected by a rod 50 With a "second lever 52 fulcrumed at 54 upon an extension of the frame. The lever 52 is also connected by a rod 56 with an arm or projection 58, forming part of, or secured to, a swinging armor frame 60 pivoted at 62 upon the machine frame. The rod 56 has its ends reversely threaded, the said ends engaging nuts secured to lever 52 and arm 58 respectively, whereby 'an adjustable connection between the work-calipering mechanism and ment being effected by rotation of the rod 56. The swinging arm 60 has a guideway 64 (see Fig. 2) formed in it lengthwise thereof, and in the guideway a slider 66 is arranged to rec'iprocate. The slider 66 is reciproc'ated through connections from the awl shaft 20, a spring 68 mounted below and partly Within the slider tending normally to raise the slider. The connections which operate the slider comprise an arm 70 on the shaft "20, a ball-ended link '72 and a yielding device. The slider or plunger 66, reciprocating within the swinging arm or frame 60, is so disposed to its actuating element, i. 6., the ball-ended link, that after the arm or frame 60 has been swung to one side or the other as will be hereinafter described, the thrust of the said actuating element will tend to maintain it in the position. thus assumed. The yielding device shown consists of a spring 74 inclosed within a recess in arm 70,. which spring bears at one end on a screw-threaded plug 76 and at the other end on a piston 78 within which one end of the ball-ended link 72 is seated. The other end of the ballended link is provided with a socket 80 which engages a ball on the end of a screw 82, screwed into the slider 66 and providing adjustment between the slider 66 and arm 70. The slider 66 is provided with an adjustable block 84 secured to the slider by a set screw 86. The block 84 has two lugs formed upon it, one on each side and at the end of each lug is a tooth or knife edge 88, 90, respectively, (see Fig. 1).

A rockshaft 92 (see Fig. 2) j ournaled in the machine frame with its axis substantially parallel with that of the swinging arm 60 has extensions 94, 96, at one end, one on each side of its axis and each extension has a tooth or knife edge 98, 100, respectively, projecting therefrom, each of which is adapted to cooperate with the corresponding tooth or knife edge 88 or 90 on the slider, as will hereinafter appear. In addition to the knife edges, the members are provided with thrust surfaces 102, 104 respectively, adapted to engage the under surface of the block 8 1, being first brought into proper position for such engagement by the cooperation of one of the knife edges upon the one member with the corresponding knife edge of the other member. Rockshaft 92 is provided at its other end with a crank arm 93 which is coupled to the raceway 34 by a ball-ended link 95.

The operation of the machine, so far as it relates to the present invention, is as follows: hen work of such thickness as to require a long n ail is inserted between the horn 22 and foot plate 24, the connections between the horn and swinging arm 60 will swing said arm into such a position that the knife edge 88, formed on one of the lugs projecting from the block 84 on the slider 66, will be in operative relationship to the tooth 98 on one of the extensions of the rockshaft 92. The slider 66 will then be reciprocated through its-connections with the awl operating shaft, the knife edge 88 will engage the tooth 98 of the rock-shaft thereby rotating said shaft in a counter-clockwise direction in Figs. 1 and 4, and causing it, through the crank arm 93 and ball-ended link to move the raceway 3 1 to bring the groove containing the long nails into alinement with the driver passage in the throat. When work which requires a shorter nail is between the horn 22 an d the foot plate 24., the swinging arm. 60 will be so moved that upon the reciprocation of the slider the other knife edge 90 will engage the corresponding tooth 100 upon the other extension of the rock shaft 2 and thus rock said shaft in the reverse direction, thereby bringing the raceway groove which contains the shorter nails into alinement with the driver passage.

In order that the rockshal't 92 shall have a tendency to remain in either of the two extreme positions into which it is moved by the slider 66, an arm 106 is provided, said arm projecting from the extension 96 and forming a bearing for the end of a toggle or ball-ended link 108, the other end of which is seated in a spring-pressed plunger 1.1.0. The toggle or link 108 is so disposed in relation to the spring-pressed plunger 110 and to the part 106 on the rockshal't 92 against which it thrusts as to tend to move the rockshaft into and keep it in its extreme position whenever it is moved past middle position. Adjustable stops 1.12, 11% mounted in the frame are provided to regulate the amount of turning of the shaft 92 so that the grooves in the raceway 3 1 can be adjusted to exactly register with the driver passage in the throat 42. Other stops 116, 118 are arranged upon the machine frame to limit the throw of the swinging arm 60 and, to prevent the thickness of the soles being dealt with in the machine from being correspondingly limited, at yielding connection is provided in the rod 50 which forms part of the connections that transmit the motion from the horn 22 to the swinging arm 60. Such yielding connection is provided by constructing the rod 50 of parts capable of relative movement to each other and connecting these parts by a spring 51, so that when a sole of greater thickness than is required to give the necessary movement to effect the change-over of raceways is introduced between the horn 22 and the foot plate, the swinging arm will first be moved over to its extreme position and the extra movement will be taken up by the yielding connection. The yielding device in the chain of connections hetv-reen the awloperating shaft 20 and the slider 66 which. comprises a spring 74 between the lever 70 and the ball-ended link 72 is provided for the purpose of preventing breakage of the parts should anything, for example an improperly fed nail, obstruct the movement of the raceway 34, and the ball-ended link is employed in this connection, on account of the awloperating shaft 20 moving in a path that is at an angle to the center 62 on which the i swinging arm 60 turns. In practice the raceway 34 has movements other than those herein described, and to provide for these movements, the connection between the crank arm 93 and the raceway 84 is made by the link 95 having a ball-and-socket conneotion with each of these members.

In order that the movements of the calipering means, under the influence of variations in the work, may be magnified in the setting device, the connections between rods 50, 56 and lever 52 are so positioned upon said lever with reference to its fulcrum 54 that such magnification is produced. It will be noted also that the arms of lever 46 are so proportioned as to further magnify the movements of the work-calipering means.v

The reciprocating element is shown as carried by the rocking member, but it is obvious that the invention is not limited to this con struction, nor is it limited to a construction in which the reciprocating member is actuated from the awl-opcrating shaft. This member may be actuated from other parts of the machine.

Although the invention is shown as applied to a machine in which selections are made from two kinds of fastenings only, it is obviously not limited in its application to such machines, since it may be readily adapted, by mere multiplication and modification of the parts, to select fastenings from any number of sources of supply.

Having thus described the invention, what we claim as new and desire to secure by Letters Patent of the United States is 1. The combination with a plurality of sources of fastening supply, a fastening receiver and a fastening guide leading from each source to said receiver, said guides being movable relatively to said receiver into different fastening-delivering positions, of a foot plate and a work support, said foot plate and work support being also relatively movable to caliper work of varying thickness and means governed by the movement of one of said last named parts for bringing said guides into different fasteningdelivering positions with respect to said receiver constructed to have no effect upon said guides when the work is of uniform thickness.

2. The combination with a plurality of sources of fastening supply, a fastening receiver and a fastening guide leading from each source to said receiver said guides and receiver being relatively movable, of a movable setting device, means for automatically setting said device to indicate by its positions variations in the work, and automatic means mounted upon said setting device and controlled in its movements by the positions of said device for moving said receiver and guides relatively to each other.

3. The combination with a plurality of sources of fastening supply, a fastening receiver and a fastening guide leading from each source to said receiver, said guides and receiver being relatively movable, of a setting device, means for automatically positioning said setting device to indicate variations in the work, means for causing a relative movement between said guides and receiver, and intermittently completed actuating connections between said device and said last-named means for varying the relative movement of said parts in accordance with variations in the work constructed to operate only for variations of predetermined amount.

4. The combination with a plurality of sources of fastening supply, a fastening re ceiver and a fastening guide leading from each source to said receiver, said guides and receiver being relatively movable, of a movable setting device, mechanism for moving said guides and receiver relatively to each other, automatic means for initially moving said device without affecting the relation of said guides and receiver and means car ried by said device and movable relatively thereto for governing said mechanism.

5. In a machine of the class described, the combination with fastening-delivery mechanism and fastening-inserting mechanism, said mechanism being relatively movable, of means for relatively moving said mechanisms comprising parts arranged to be.

brought into and out of operative engage ment with each other and means for governing said relative movement comprising work-calipering mechanism and means for causing the movements of said work-calipering mechanism to vary the operative relations of said parts of said means for relatively moving for variations in thickness of the work of predetermined amounts without affecting the position of said relatively movable mechanisms.

6. The combination with a fastening receiver and a plurality of fastening guides, of means for effecting a change in the relative positions of said guides and receiver, comprising means for efiecting a relative movement of said before-mentioned parts, actuating means for said moving means, means for effecting a relative movement of said moving means and said actuating means into and out of operative engagement, and automatic means operating while said moving means and said actuating means are out of operative engagement for effecting variations in the points of engagement or said means in accordance with variations in the work.

7. The combination with a fastening re ceiver and a plurality of fastening guides, of means for effecting a change in the relative positions of said guides and receiver, comprising means for effecting a relative movement of said before-mentioned parts, actuating means for said moving means, means for effect ng a relative movement of said moving means and said actuating means into and out of operative engagement, and automatic means for effecting variations in the points or engagement of said means in accordance with variations in the work constructed to operate only for variations of predetermined amounts.

8. The combination with a plurality of sources of fastening supply, a fastening receiver and a fastening guide leading from each source to said receiver, said guides and receiver being relatively movable, of means for changing the relative positions of said guides and receiver, normally operative means adapted to engage and actuate said changing means, and automatic means for varying the point of engagement of said two engaging means in accordance with variations in the work constructed to operate only for variations of predetermined amounts.

9. The combination with a fastening receiver and a plurality of fastening guides, of means for changing the relative positions of said guides and receiver, normally operative means adapted to engage and actuate said changing means, and automatic means operating upon one of said before-mentioned means while said means are disengaged for varying the point of engagement of said means in accordance with variations in the work constructed to operate only for variations of predetermined amounts.

10. The combination with plurality of sources of fastening supply, a fastening receiver and a fastening guide leading from each source to said receiver, said guides and receiver being relatively movable, of means for changing the relative positions of said guides and receiver, actuating mechanism for said changing means comprising a normally reciprocating member, a movable guide for said reciprocating member and means for moving said guide to vary the path of the reciprocating member.

11. The combination with a plurality of sources of fastening supply, a fastening receiver and a fastening guide leading from each source to said receiver, said guides and receiver being relatively movable, of means for changing the relative positions of said guides and receiver, actuating mechanism for said changing means comprising a normally reciprocating member, a movable guide for said reciprocating member and automatic means for moving said guide to vary the path of the reciprocating member.

12. The combination with a plurality of sources of fastening supply, of a fastening receiver and a fastening guide leading from each source to said receiver, said guides and receiver being relatively movable, of mechanism for causing said relative movement, reciprocating means for actuating said mechanism, a member upon which said means reciprocates, and automatic means for varying the position of said member in accordance with variations in the work.

13. The combination with a plurality of sources of fastening supply, a fastening receiver and a fastening guide leading from each source to said receiver, said guides and receiver being relatively movable, of means for changing the relative positions of said guides and receiver, actuating mechanism for said changing means comprising a nor mally reciprocating member, a movable guide for said reciprocating member and automatic means controlled by variations in the work, for moving said guide to vary the path of the reciprocating member.

14. The combination with fastening-delivering mechanism and fastening-inserting mechanism, said mechanisms being relatively movable, of automatic means for causing said relative movement comprising a member connected to one of said relatively movable mechanisms, and having a plurality of engaging surfaces, a reciprocating member having a plurality of corresponding engaging surfaces and automatic means to change the path of reciprocation of said reciprocating member.

15. In a machine of the class described, the combination with a fastening receiver and fastening guides leading to said receiver, said guides and receiver being relatively movable, of means for causing said relative movement comprising a rocking shaft having engaging members upon opposite sides of its axis, a reciprocating member having engaging portions adapted to engage the corresponding members of the rocking shaft and means for varying the path of the reciprocation of said reciprocating member in such manner as to cause an engaging portion of the reciprocating member to engage the corresponding member on one side of the axis of the rock-shaft only.

16. A raceway having two fastening guides and movable to and fro into two different fastening selecting positions, an oscillating member, means for transmitting to said raceway the movements of said member, a second member constructed to determine by its contact with said oscillating member the di rection of swing of said member, work calipering means, connections between said second member and said work calipering means, and means for effecting relative movements of said members into and out of operative contact.

17. The combination with a fastening re ceiver and a plurality of fastening guides, of means for efiecting a change in the relative positions of said guides and receiver, comprising, in combination, oscillating means provided with actuating contact portions upon opposite sides of a predetermined line through the axis of oscillation, means the position of which with respect to said line is controlled by the thickness of the work, said means being constructed for engagement with one or-the other of said actuating portions in -to said members relatively moved a positive accordance with its position with respect to said line, and means for effecting a relative movement of said before-mentioned two means into engagement with each other whereby the angular position of said firstmentioned means with respect to said line may be controlled by said second-mentioned means.

18. The combination with a fastening receiver and a plurality of fastening guides, of means for effecting a change in the relative positions of said guides and receiver, comprising, in combination, a setting device, means for effecting an initial movement of said setting device of an extent roportional to the thickness of the wor and means controlled in its action bythe position of said setting device with respect to certain predetermined limits for effecting a uniform 1nal positioning of said setting device for a certain range of thicknesses of the work by I imparting to-it a movement, or a tendency to move, in a direction and to an extent in said direction determined by said limits.

19. The combination with a plurality of sources of fastening supply, a fastening receiver and a fastening guide leading from each source to said receiver, said guides and receiver being relatively movable, of actuating mechanism constructed and arranged to effect a relative movement between said guides and receiver, fastening inserting mechanism, actuating mechanism therefor, yieldingly mounted means controlled by the movement of said second-named actuating mechanism for operating said first-named actuating mechanism, and means to impart tendency to maintain whatever relative positions they may assume.

20. In a machine of the class described, the combination with a plurality of sources of fasteningsupply, a fastening receiver and fastening guides leading from each source to said receiver, said guides and receiverbeing relatively movable, of means for causing said relativemovement, means for varying the amount of said relative movement, said moving means comprising yielding means which accommodate the moving means to variations in the amount of movement and also impart to the parts upon which they operate a tendency to remain in the relative positions to which they are moved.

2-1. In a machine of the class described, the combination with a fastening receiver and fastening guides leading to said receiver said guides and receiver being relatively movable, of means for causing said relative movement, means for controlling said lastnamed means in accordance with variations in the work, said controlling means being limited in its movement, and yielding means interposed in the connections between said controlling means and the work to accom1nodate the controlling means to excessive variations in the work.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

ARTHUR BATES. HENRY PERCIVAL GAMBLE.

Witnesses:

NALTER IV. BALL, T. H001).

It is hereby certified that in Letters Patent No. 922,447, granted May 25, 1909, upon the application of Arthur Bates and Henry Percival Gamble, of Leicester, England, for an improvement in Machines for Inserting Fastenings, errors appear in the printed specification requiring correction, as follows: In line 89, page 4, the compound Word fastening-delivery should read fasteningdelivering, and in line 91, same page, the Word mechanism should read mechanisms and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 29th day of June, A. D., 1909.

[SEAL] C. C. BILLINGS,

Acting Commissioner of Patents.

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