US1026789A - Machine for securing wire to frames. - Google Patents

Description

. G. W. DARLINTON. MACHINE FOR SBGURING WIRE T0 FRAMES.

APPLICATION FILED JUNE 12, 1911.

Patented May 21, 1912.

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Patented May 21, 1912.

2 SHEETS-SHEET 2.

George 612 Darlz'zzzan.

UNITED STATES PATENT OFFICE;

GEORGE W. DARLINTON, OF LOS ANGELES, CALIFORNIA.

MACHINE FOR SECURING WIRE T0 FRAMES.

To all whom it may concern:

Be it known that I, GEORGE W. DARLIN- TON, a citizen of the United States, residing at Los Angeles, in the county of Lo s Angeles and State of California, have invented new and useful Improvements in Machines for Securing Wire to Frames, of which the following is a specification.

This invention relates to improvements in machines for securing screening to frames, and it particularly relates to the securing of wire'fabric or screening to frames for closing various openings such as windows, doors or the like.

It is an object of the invention to provide a machine with suitable pressure devices for holding the screening and the frame to which it is applied in proper position in relation to each other and also wit-h means for guiding and forcing securing ribs, ratan or the like in grooves in the framing so as to bind and hold the screening in position.

It is also an object of the invention to provide curved pressure means for shaping and inserting the edges of the wire screen'- ing and forcing into position the binding reed. ratan or other strip at the corners of the screens.

It is also an object of the invention to provide means for feeding the wire screening and the securing reeds or ratans into place beneath the pressure devices so that the proper amount of screeningwill be engaged by the ratan, reeds or other strips, fo facilitating the binding of the edges.

In the accompanying drawing forming a part of this specification; Figure l is a side elevation of the improved device for securing wire screening to framing. Fig. 2 is a transverse sectional view taken upon the line 12-2 of Fig. 1, and showing a portion of the device Fig. 3 is an inverted plan VlQ of the mechanism shown in Fig. 2. Fig. -1 is a vertical sectional view taken through the mechanism shown in said Fig. 2, the standards for operating the pressure device being shownin side elevation. Fig. 5 is a fragmentary plan View of a corner of a screen, the wire portion being held in place in a groove of the frame by a suitable strip of ratan. Fig. 6 is a side elevation of the mechanism shown in Fig. 1, but looking at the side of the portion employed for inserting the wire and ratan in the groove of the framing in the straight portions thereof. Fig. 7 is an enlarged detail sec- Specification of Letters Patent.

Application filed .Tune 12, 1911.

Patented May 21, 1912.

Serial No. 632,575.

tional view taken upon the line 7--7 of Fig. 6. Fig. 8 is an enlarged perspective view of the presser foot employed for directing and holding the screening and rata-n in position for being forced into the groove of the framing. Fig. 9 is a detail perspective view taken upon the line 99 of Fig. 7. Fig. 10 is an enlarged fragmentary sectional View taken through a portion of a frame, and showing the edge of a wire screen secured in a groove in the frame by reed or' ratan.

The features of the invention will now be more fully described, reference being had to the accompanying drawing.

In said drawing 10 indicates a frame which is secured to a standard or support 11 preferably suspended from above so as not to interfere with the work passing beneath the apparatus. The said standard is preferably of triangular shape in cross-section as shown in Fig. 2, and the frame 10 is bolted or otherwise secured to one of its faces. The said frame is provided with outwardly extending bracket portions 12 and 13 in which is movably mounted a plunger rod 14.. The upper end of said rod projects above the bracket 12 and is bifurcated at 15 so as to facilitate a pivotal attachment to a lever 16 which is mounted upon the top of the frame 10. The said lever 16 is fulcrunied upon an arm 17 projecting from the upper end of said frame 10, and its inner end is provided with a slot 18 for engaging a pin 19 which passes over a bifurcated upper end of the plunger rod 14. The plunger rod is provided with a stop in the form of a nut 20 between which and the bracket 12 is arranged a coiled spring 21 which normally tends to force the said plunger 14 downwardly and into engagement with the work.

The lower end of the plunger 1-1 is provided with a head 22 which carries a bracket 23, the arms of which extend upwardly so as to brace and slide upon the bracket 13. The head 22 is provided with a downwardly extending bifurcated portion in the lower part of which is journaled pressure rollers 24: and 25 and a rod or ratan inserting roller 26. The roller 24, which is adapted to engage the wider portion of the framing to which a wire screening is to be secured, is journaled upon a shaft 27 which finds a bearing at 28 in one of the downwardly projecting portions of the said head 22. The outer end of the shaft 27 is provided with a crank 29 by which it may be turned. The inner end of the shaft 27 projects beyond the roller 24 and is provided with a cam portion 30 upon which is revolubly mounted the said groove roller 26. By turning the shaft 27 the eccentricity of the roller 26 with respect to the roller 24 may be varied and the depth to which the said grooved roller 26 will force the ratan or reed in the groove of the frame will be controlled by the position of the said cam 30.

The shaft 27 is adapted to be clamped in any adjusted position by means of a set screw 31 which extends through a threaded recess 32 formed in the head 22, and is adapted to bear against the periphery of the said shaft 27 as clearly shown in Fig. 7 of the drawing. The said screw 31 is loosened when the shaft 27 with the cam 30 is to be adjusted, and the crank 29 is turned until the grooved wheel 26 projects at the lower edge of the pulley 24 the desired distance for forcing the ratan into the groove of the screen framing after which the set screw 31 is tightened.

The pressure roll 25 is usually made narrower than the roll 24, though of course it may be made of various widths within the spirit of the invention. The said roller 25 is movably mounted upon the inner end of a short shaft 33 which is secured to a block 34. The said block 34 is mounted so as to 'plate 36 secured to the lower end of one of the bifurcated portions of the said head 22 as illustrated in Fig. 9. In order to hold and adjust the roller 25 in the desired relation to the other rolls 24 and 26, the block '34 is connected with a rod or shaft 37 having a bearing in the adjacent portion of the head 22 and having a swivel engagement at 38 with the said block 34. The said shaft 37 is provided with a cam portion 39 adapted to engage a pin 40 and force the said pin against one of the walls of the recess 35 and thus bind the block 34 in adjusted position. By turning the shaft 37 so that the reduced side of the cam portion 39 will come opposite the pin 40, the said pin will move inwardly and release the block 34 so that the same may be adjusted longitudinally of the said recess 35. By moving the block longitudinally of said recess, the roll 25 may be advanced-or placed to the rear of the rolls 24 and 26 or may be positioned exactly opposite the same. The axis of the said roller 25 is preferably upon the same horizontal plane as the axis of the saidroller 24.

The head 22 upon the opposite side thereof from the roller 25 is provided with a yielding presser foot 41 which is carried by spring pressed rods 42 which extend upwardly into vertical bearings formed in the head 22 and into an enlarged recess 43 also formed in said head 22. The rods 23 are normally pressed downwardly by a spring 44 which is mounted in the recess 43 and bears against a shoulder 45 formed upon each of said rods 42. The upper end of each of said springs is seated against the upper end of the recess 43, the bolts 42 being limited in their downward movement by nuts 46 applied to their upper ends.

The presser foot 41 has secured to it a guide plate 47 which is provided with means for holding and directing the wire screening beneath the roll 25 and also with means for directing the ratan or reeds beneath the roll 26. The said plate 47 is secured to the pressure foot 41 by means of a bolt 48 which extends through an aperture in the presser foot 41, and is clamped in position by a nut 49 applied to the upper end of said bolt 48. The nut 49 is accommodated when in its uppermost position by recesses 50 formed in the under edge of the adjacent part of said head 22. By securing the said plate 47 to the said presser foot 41 by a single bolt, the plate may be set at slightly different angles for insuring the proper feeding of the wire screen to the securing pressure rolls. This is found especially useful as the wire sometimes shows a tendency to stretch more in one direction than in the other, and such unevenness or tendency can the plate 47 is formed with an inclined and slightly curved surface as 51, adapted to more or less closely lit the contour of the roll 24 as will be understood by reference to Fig. 8. The inner edge of the plate 47 is provided with a vertically arranged edge plate 52, the front end of which is curved downwardly and forwardly at 53 so as to also fit the periphery of the roller 24. The front edge of the said plate 47 is recessed at 54, and an adjustable plate 55 is mounted in said recess, a set screw 56 which extends through a slot 57 in the plate 47, holding the said plate 55 in its adjusted positions. The

plate 55 is designed to be adjusted laterally Fig. 8. The plate 55 may be adjusted laterally to control the extent to which the re duced part 58 projects beyond the edge plate 52, and the adjustment of said plate is a matter of importance in securing the proper guiding of the screen which is being operated upon. The wire screening which is to be secured to the frames is also guided in being presented to the rolls 24, 25 and 26 by means of laterally projecting rollers 60 and 61, the said screening being usually guided between the said rollers, passing downwardly over the rollers 61 and forwardly beneath the roller 60 as also indicated in dotted lines in Fig. 8.

In order to tend to feed the edge of the screening toward and against the plate 52, inclined feed rollers 62 and 63 are also provided, one being arranged immediately above the other, and the screen being passed between them. The upper roller 63 is preferably carried by a shaft 64 which projects from a pivoted block 65. The said block 65 is pivotally mounted upon the plate 47, and a spring 66 mounted upon the extended pivot pin 67 of said block normally tends to force the block 65 with the roller 63 downwardly. The said block 65 with the roller 63 can be lifted at any time for inserting the screening beneath the same for feeding the said screening into the machine. The said plate 4L7 also carries a ratan guide plate 68 which isadjustably clamped upon the said plate 17 as clearly shown in Fig. 8.

Y The said guide device carries an inclined groove portion 69 which is curved clownwardly and forwardly so as to lead the ratan accurately into position over the edge of the wire screening and beneath the grooved roll 26. The block 65 may be made to operate automatically if desired, the said block being connected by means of a cord 70 with the upper end of one of the pins 42 so that when said head rises, the cable 70 will be caused to lift the block 65 and the roller 63 so that a new piece of wire screening may be inserted beneath the same.

Below the head 22 is a work supporting roller mechanism made up of a framing 71 in which are journaled roller-s7 2, there preferably being a plurality of such rollers so that the work is movably supported beneath the head and its presser foot when the screening is being applied thereto.

The said standard 11 also carries an additional presser device which is mounted upon a plate 73 which is secured to the said standard 11 and is provided with upper and lower brackets 7-l and 75 respectively. Movably mounted in said brackets are plunger rods 76 and 77 preferably arranged parallel with each other and adapted to move one against the other. The lower ends of the said plunger rods are provided with work engaging heads as 78 and 7 9. The head 78 is provided with a projecting nose portion 80 of a proper shape to fit into the corner of the screen just inside the ratan. The said head portion 79 also carries a guide strip 81 spaced from said nose portion 80 and lying parallel therewith so as to form a slot through which a ratan driving slide may be passed. The said ratan driving slide 82 is carried by the head 78. By reason of the mounting of the plunger bars 76 and 77 the head 79 may first descend and rest upon the work after which the head 78 will fall, the slide 82 passing downwardly through the slot inside the plate 81. and engaging the ratan for forcing it into the groove of the framing to which the wire screening is to be secured. The relative positions of said parts and their location when operating upon the work can be readily understood by reference to Fig. 4 of the drawing. The lower edge of the slide 82 is preferably grooved as indicated at 83 so that the said slide will properly fit upon the ratan or reed for forcing it into the groove of the frame. As stated heretofore the heads 78 and 79 follow each other in their action. To secure this action, two springs surround the said plungers, one of said springs 81 being made stifl'er and stronger than the other, or the spring 85. The plunger 76 carries a collar 86 which bears upon the upper end of the said spring 84. The lower end of the spring 82L bears upon a collar 87 which is rigidly secured to the plunger 77. The spring tends to lift both of the plungers 76 and 77, while the spring 8st under the action of the collar 86 will insure a proper depression of both of the said plunger-s.

The upper end of the plunger 76 is bifurcated at 88, and is pivotally connected with an operating lever 89. One end of said lever 89 is connected by links 90 with a fulcrumed arm 91 projecting from the brackets 74:. The plunger 77 is made slightly shorter than the plunger 76 so that it will not be engaged by the lever 89. By depressing the lever 89 the plunger 76 begins to descend carrying the collar 86 downwardly with it. The spring 84 will cause the collar 87 to force the head 7%) into engagement with the work, first holding the screening in position at the corner of the framing to which it is to be applied. The lighter spring 85 will then yield so that the plunger 76 may be forceddownwardly carrying the head 78 and the slide 82. The slide 82 will be carried downwardly far enough to force the ratan into the groove of the framing carrying with it the edge of the screening as shown in Fig. l and thus securing the corner of the framing in position as shown in Figs. el, 5 and 10. The framing 92 to which the screening is to be attached is provided with a groove 93 to receive the edge of the said screening 94, and the securing of ratan or reed 95.

In operating the machine, the framing to which the wire screening is to be fastened is first placed upon the bed 96 of the machine, one of the rolls of the said framing being extended beneath the head 22. The wire screening has its edge portion inserted beneath the roller 63 and it is then drawn downwardly between the rollers 60 and 61 and underneath the gage plate 58. The ratan or reed to secure the screen in place is then drawn from any suitable supply, and the end thereof passes downwardly through the groove plate 69. The screen frame with the wire screening is then carried forwardly beneath the plate 47 and the pressure rolls 2st, 25 and 26 are pressed tightly upon the screen and framing so that as the material is advanced beneath the rollers, the grooved roller 26 will force the ratan and the edge of the wire screening beneath it, tightly into the groove 93 of the said framing. Upon reaching the corner of the framing, the work is shifted upon the bed 96 so as to bring the said corner beneath the head 79 after which the lever 89 is depressed, the head 79 holding the screening in position while the slide 92 descends and forces the ratan in a curved position opposite the nuts 80, into the curved portion of the groove 98, thus securing the screening and ratan in the position shown in Fig. 5. The work is then again shifted to bring it beneath the rolls 24:, 25, and 26 for securing the next side of the wire screening in, place. The work is then continued untilt-he edge of the screening has been secured entirely around the same.

As above intimated the rollers 62 and 63 set in an incline with respect to the edge plate 52 tend to feed the screening against the said plate 52. The said rollers 62 and 68 as well as the rollers 60 and 61 are usually slightly roughened or serrated on their peripheral surfaces to better engage the wire screening if the wire screening is found to tendv to draw outwardly from over the groove 98, the roller 25 is advanced slightly in front of the other rollers to insure clamping the screening in position and prevent its pulling away. If however, the screening tendsto pull in the other direction the roller 25 may be pulled backwardly opposite the other rollers or arranged to the rear of the next of said rollers. The said rollers may be readily and quickly adjusted to accomplish their work. The eccentric mounting of the ratan engaging roller 26 makes it possible to force the ratan the proper depth into the groove 93, the adjustment being in accordance with the depth of said groove and the thickness of the ratan being used.

The adjustment of the plate 55 with its projecting flange 58 controls the positioning of the ratan with respect to the edge of the screen. Then the plate 58 projects a considerable distance beyond the plate 52, a

greater margin of screening will be carried downwardly into the groove 93 of the ratan 95. When it is not desired to have the screen extend so far into the groove, the plate 58 is drawn inwardly and the ratan lies near the edge of the screen and does not carry so much of it in the groove.

hat I claim is 1. A machine for applying wire. screen ing to frames, comprising rolls for holding the screening and frame in proper relation to each other, and means for forcing securing strips into contact with said frames so as to secure the edge of the screening thereto.

2. Means for applying wire screening to frames, comprising rolls for holding the screening with respect to the said frames, and a roller adapted to force a binding strip or reed into a groove upon the frame for wedging the wire screening in place.

3. Means for applying wire screens, comprising a roll for bearing on a framing, a

roll for pressing screening against the frame, and a roll for forcing the edges of the screening into the groove of the framing, and wedging a securing means in said groove.

.4. Means for applying wire screens to grooved frames, comprising a pressure roll for holding the screening with respect to the groove of the rail, a grooved roll for forcing a strip or ratan into said groove along the edge of the screening, and means for forcing the said rolls into their work under a suitable pressure.

5. A mechanism for securing wire screening to grooved frames, comprising pressure heads adapted to hold the wire screening with respect to the grooves of a frame, along the straight sides, and at the corners of said frame, and means for forcing a securing ratan into said grooves along the straight part and at the corners of the frame for wedging the edges of the screening in place.

6. A machine for securmg w1re screening to grooved frames, comprising reciprocating pressure heads, means carried thereby for holding screening adjacent to the groove of the framing, and means for forcing the edges of the screen and a securing strip of material into said groove.

7; Means for securing wire screening to grooved frames, comprising a reciprocating head, pressure rolls carried thereby for holding the screening and framing in position, and an intermediate grooved roll adapted to force binding material into the groove of the frame for securing the edges of the screening.

8. A mechanism for applying wire screening to grooved frames, comprising a reciprocating head, pressure rolls carried by the said reciprocating head, an adjustable groove engaging roll for forcing the securing means into a groove formed upon the edge of the screening, and means for ad justing the said groove engaging roll so as to project at the desired distance beyond the face of the pressure rolls.

9. Mechanism for applying screening to grooved frames, comprising a reciprocating head, means for raising and lowering the same, pressure means carried by the said head, for holding the screening and framing in relation to each other, a groove engaging roller mounted adjacent to the pres sure means for forcing the edge of the screening into the groove and a binding means upon the same, a cam carrying the said groove roller, and a shaft for turning the said cam, the structure bein such that the edge of the groove engaging roll may be adjusted with respect to the face of the pressure exerting means, according to the depth of the groove in the framing.

10. A mechanism for applying wire screening to grooved frames, comprising a reciprocating head, a bracket carrying the same, a plunger rod having bearings in said b 'acket and carrying the said pressure head at its lower end, a lever for operating the said plunger rod, a spring normally tending to force the plunger downwardly, and a screen securing means carried by the said head for fastening the wire in the groove of said framing.

11. A mechanism for applying wire screening to grooved frames, comprising a reciprocating head, a work engaging presser foot carried thereby, means for guiding the wire screening through said presser foot, means carried by the said presser foot for guiding strips or securing reeds to the groove of the framing above the wire, and means for pressing the wire and securing means into the groove of the frame.

12. A mechanism for applying wire screening to grooved frames, comprising a pressure head, a spring actuated presser foot mounted therein, a work directing plate adjustably secured to said presser foot having wire guiding rollers mounted thereon, 1nclined wire engaging rollers adapted to insure the proper maintenance of the wire in the feed device, an adjustable groove plate carried by the work plate for guiding the securing ratan to the groove of the framing, and adjustable means mounted adjacent to said groove plate for controlling the distance the ratan is placed from the edge of the said wire screening.

13. A mechanism for applying wire screening to grooved frames, comprising a reciprocating head, pressure means mounted thereon for forcing the screening securing means against the frame, a work engaging plate movably mounted on said head, wire feeding rolls carried by said plate, a pivotally mounted gripping roll cooperating with one of the feed rolls, a spring actuated plate carrying said roll and adapted to hold it normally downwardly, means connecting said plate with the pressure head whereby when the mechanism is lifted from the work the wire gripping roll will be lifted from the screen, and means carried by the said plate for feeding securing ratan upon the edge of the wire as it passes to the groove in the framing.

14. A mechanism for applying wire screening to grooved framing, comprising a reciprocating head, a frame engaging pressure roll revolubly mounted thereon, a groove engaging roll mounted adjacent to the said pressure roll, a screen engaging pressure roll mounted adjacent to the groove engaging roll, a reciprocating block carrying said roll whereby it may be advanced or adjusted opposite or to the rear of the groove engaging roll, and means for clamping the said roll in its adjusted position.

15. A mechanism for applying wire screening to rails, comprising pressure means for rolling upon the said screening, pressure means for shaping and engaging the corner portions of the screen made up of reciprocating plungers, adapted to fit upon said corner portion, a groove engaging portion also fitting in said corner, means for depressing the plungers, and springs engaging said plungers for controlling their relative movements.

16. A mechanism for applying wire screening to grooved frames, comprising pressure means adapted to travel along the edges of the screening, means for forcing the screening into the groove at the corners of the framing comprising reciprocating plungers, heads secured to each of said plungers and extending around the adjacent plunger, a spring interposed between said heads, a lighter spring interposed between the lower head and the supporting means of the plungers, a bracket movably holding said plunger-s, a lever for ope ating the plunger-s, the said lever engaging one of the same, the said springs imparting movement therefrom to the other plunger, a single die plate adapted to press upon the screen at the corner of the framing and having a guide flange thereon, a reed applying head carried by the other plunger and having a groove engaging slide moving within said guide flange, and means for supporting the work beneath the said plungers.

17. A mechanism for applying a Wire screening to grooved frames, comprising pressure means for traveling along the edge of the screening, groove-engaging means for forcing the screening and retaining means into said groove, means for movably supporting the work beneath said applying means comprising a framing and a roller journaledtherein, and means for bringing the pressure into and out of engagement with the Work.

18. A machine for applying Wire screening to frames, comprising means for guiding the screening into position upon a frame, and means for rolling the edges thereof into v contact With the frame to secure it in place.

19. A machine for app1ying Wire screening to frames, comprising means for directing the edges of the screening to the sides In Witness that I claim the foregoing I 15 have hereunto subscribed my name this 3rd day of June, 1911.

G. W. DARLINTON.

Witnesses E. STADLMAN, EARLE R. POLLARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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