US1674437A - Glazier's point setter - Google Patents

Description

June 19, 1928.

G. HUBBARD GLAZIERS POINT SETTER Filed oct. 22, 19,21

r l I I l s l G. HUBBARD GLAZIIERS POINT SETTER June 19,1928.

Filed oct. 22, 1921 3 sheets-sheet 3 Patented June 19, 1928.

UNITED STATES Param"y oFFicE.,

GUY HUBBBD, 0F WIN DSOR-VERMONE ASSIGNOR TO THE yHUBBARD CORPORATION,

OF WINDSOR, VERMCNT, A COIR'IPOIR/ATION` 0F V'JEIIRJYIIOLTLI?.v

qLAzIEn's POINT sET'rER.

In setting glass in sashes it has been custolnary to drive into the sash to hold the glass in place before the sash is puttied metal points of either triangular or diamond shape.

The use of the Idiamond point, while'saving half the material with equal holding power over the triangular form required the de# velopment of a machine for driving the points, since with a diamond shape there is nov flat surface to receive the driving blow. A machine for this purpose is shown in the patent to George W. Hubbard No. 252,379, January 17, 1882, the diamond points themselves being covered by Patentv No. 230,631,

granted' August 3, 1880 to the same inventor. In the machine the points are stacked in superposed relation and driven out one by one from the bottom of the stack as required. In order to'facilitate the handling and loadhing of these points it has been proposed to cement. them togetherI to form columns or sticks insertable as units in the machine, this being shown and'described in the Hubbard Patent No. 230,632, dated Augustl 3, 1880. 251 As the lowest point'of the stick must be sheared olf when being driven it is essential that the cement be somewhat weak and con- [sequently the sticks are inclined to break V."apalt,` es ecially when roughly handled.

:Such stio s are commercially put-up in lengths of two inches, each stick having about vone hundred points. It is therefore necessary to load the machine often and some vure 5. I

times with several short sections.

The present invention seeks to provide a machine in which the points are cut from a. strip'insertable in the machine -coiled and in which the cutting, driving vand feeding operations are controlled by a'single operal40. tive movement of the main actuator for the machine. Such a coil having an outside 'diameterof approximately 3% inches and wound on a core of about one inch in diameter contains somewhat over a thousand points of the type contemplated by this lin- ,members shown separated'.

The machinefor driving these points is so designed that by movement of'a trigger in one direction a point is punchedoif and presented in position to be driven, and the driver is retracted under spring pressure and then released to drive the point, the remainder of the strip being held from movement. As the trigger isallowed to move in the opposite direction the strip is released anda feed finger permitted to feed it forward preparaa tory to cutting and driving a *succeedingJ p0int. This feeding takes 4place between the driving strokes 0f the machine and is effected by a spring so that the action is not suddenl like that of the driving, but is-a'ccomplished without shock or jerk.

For a more complete understanding of this invention, together with further objects and advantageous details and combinations of parts, reference may be had to the accompanying drawings in which:

Figure 1is a side elevation of the machine, the part-s being shown in position ready to 'drive a fastener.

' Figures 2 and 3 are end elevations looking in opposite directions.

Figure 4 is a bottom plan view. Figure 5 is a central. longitudinal cross section.

Figure 5a is afragmentary section similar to a portion of Figure 5, but illustrating a slight modification.

Figure 6 is a section on line 6-6 of Fig-V Figure 7 is a section on line 7--7 of Figure 6.

Figures 8 and 9 are fragmentary sections similar to Figure 5, showing the parts in different relative positions.

Figure 10 is a plan of the fastener strip.

Figure 11 is a cross section thereof.

Figure'12 'is a section on line 12-12 of Figure 10.

Figure 13 is a perspective view of a point v onan enlarged scale as cut off from the strip.

Fi ure 14 is -a detail and perspective of the 'eeding and supporting members of the machine. i

Figure 15 is a det-ail of the same guide Figure 16 is a perspective of the vlower gui-de member in longitudinal section.

- Figure 17 is a perspective of the punch.

Figure 18' is a top plan ofthe punch lifter. Figure 19 is aside elevation of the same. n n

Figure 20 is a perspective of the strip-retaining plunger.

Figure 21 is a fragmentary section similar' to a portion of Figure 5, but showing a modi-A fied construction of certain parts. v l

Referring first to Figures to 13, the

.strip from which the points are cut compunch to form the individual points. As`

prises a metallic ribbon 1 having beveled .sides 2 which is indented at intervals to form parallel V-shaped or reentrant angle indentations3 which define the lines along which the sections are to be cut. off by the effect of the point, the other end of the point terminating in a single projecting point 7 complemental. to the space between the prongs6. The strip is formed in this manner by bein@r passed between corru ated rolls and throug a die, the action o the rolls forming the depressions 3 which serve to partlall-y sever the strip into sections which form the driving points, to sharpen the inner faces of the prongs which enter the sash, and which also serve to stretch the material of the stri lengthwise so that-an `increased number ol points may be cut therefrom, while the action of the die is to bevel the outer edges of the strip, and to size it after any deformation by the corrugated rolls. The weakened portions of the strip formed by the depressions 3 also render the strip more flexible so that it may be readily wound into a coil on a mandrel which may be supported in the driving machine. These depressions also furnish pockets for containing lubricant for lubricating the punch and other mechanism of the driving machine if Y desired and they also serve as abutments engageable by the feed and retainer fingers to be later described so that the feeding action is rendered accurate andeerta-in.

The strip is preferably coiled within a suitable container such as a round cardboard box as shown at 10 in Figures 1, 3, 4, and 5 having a central bore 11 through which is passed a pin 12 which may rest between a pair of upwardly and rearwardly extending gaws 13 fixed at the rear end of the frame 14 of the driving machine. A leaf spring 15 lfixed at its forward end to the frame 14 may bear on this box to hold it in position. The strip may be led out through a. suitable slot lin the outer wall of this box which is stationary and from thence passes between a pair of supporting and guiding rods 16 and 17 projecting forwardly from the frame and fasten thelblock to thel frame.

end of the ram 30 has fixed thereto a pointleading to the forward edge of the machine from which the driving of the pointstakes place. The supporting and guiding rods for the strips are shown detached in Fig- ` ures 15 and 16, the upper of these rods 16 having a grooved lower face 18 within which the fastener stripmay lie. The forward end of this rod is slotted out to form into this opening 22 is the forward end of a..

groove 23.

The rods 16 and 17 when placed together form a substantially round guide on which is adapted to reciprocate a driving ram 30 formed as a sl eve. This driving ram is supported from the rods 1-6 and 17 at one end by means of a bushingv 31 which has a sliding fit uponl the rod, this bushing receiving the thrust from a coil spring 32 around l the rods 16"and 17 and bearing at its rear end against a slotted block 33 supported. in the machine frame, through which the guide rods pass, vand by which they are clamped in place by tightening 'the screws 330 which The .forward driver 34, this driver havingat its forward end a notch 35 to engage on the rear pointed end of the point. is guided o the rods 16 and 17 by means of a bushing 36, the internal diameter of the The front end of the ram Y ram between the bushings 31 and 36 being.'

somewhat larger than the external dia-meter of the guide rod. Between the bushings 31 and 36 is a collar 37 which is free to slide on the rods 16 and 17 -and .within the ram. This collar is normally urged toward the bushing 36 by means of a coil spring '38' positioned between it and the bushing 31.,

The collar 37 has projecting from its forward face a feed finger 138 having a spring portion 39 terminating at its outer end in a point40 which may find engagement within the indentations 3 vof the fastener strip.

This feed finger is adapted to slide within the not-ch 19 of the upper guide rod. Opposite thel feed finger is mounted a spring supporting finger 41 having an upwardly directed outer end 42. This spring is movl rod and its forward end is adaptedto support the point strip within the die `opening able within the slot 23 of the lower guide pointed at 51 to mate the strlp indentations .fy

3. This punch is slidable vertically within a rectangular opening 52 of the machine frame, this frame being composed of a pair of mat-ing side sections riveted together at intervals and having mating recesses to forni the openings to receive the various parts. This punch is normally held upwardly by means of a punch lifter shown at 53 consisting of a cylindrical bar 54 vertically slidable in a cylindrical recess 55 substantially parallel to the punch opening 52. The upper end of the lifter is forked and projects on opposite sides of the upper end of the punch and between the lforlied portions is passed a rivet 56. To receive the rivet, the

upper end of the punch isfornied with a slot 57 terminating in a ciiculai' opening or per.

foration 58 of somewhat greater diameter than the width of the slot. One side of the rivet 56 is cut away as shown at '59 so that by turning the lifter 53 to extend substantially at right angles to the punch its flattened portion will come in alineineiit with theslot 57 permitting the rivet to be withdrawn through the slot. l/Vhen the lifter is in its normal. position, substantially parallel to the punch, the flattened, portion 59 is against the back wall of the opening 50 and the rivet can not be withdrawn through t-he slot. This construction provides means by which the parts may be readily assembled and disassembled when required.

The punch is normally held upwardly by means of a coil spring 60 bearing on the un-l which will be later described, by which this plunger may be lifted to lbring it out of engagement with the strip.

The trigger member above referred to comprises a lever pivoted at 7l between the side frames ofthe machine, and having a combination positive and spring punch operat-ing shoe portion 72 which bears at two places upon the top of the punch lifter. This punch operating shoe consists of a double curved piece of tempered spring steel 73 so shaped as to spring or snap on to the trigger member, and has twov bearing' points a and b which come into contact with the top surface of the punch lifter during the opera tion of the machine. This trigger is `normally held with its free end rocked downward by means of a spring 74 reacting against an abutment 7 5 thereon and seated vin a socket 76' in the frame portions. In

vper end of its socket.

place of the coil spring 74 a construction,

shown in Figure 5a (Sheet 3) may be employed in which the punch operating .shoe 72 is continued above the trigger to form a resilient finger 720 reacting against the ini ner surfaces of the frame portions as at 721. Above the free end of the trigger lever the frame portions are formed asia gripping handle 77 positioned relative to the trigger so that as the handle is grasped by theopeiators hand his lingers may extend beneath the trigger so that the trigger may be drawn upward toward the portion 77 by a squeezing action to operate the machine. Such upward drawing action depresses the punch, slowly and powerfully at lirst through the medium vof point b of the operating shoe,

which swings on a short lever arm and thereby gives great power to shear olfthe fastener from the strip, and then rapidly through the medium of point a which has a spring support and therefore tends to snap the fastener downto the surface of the glass ,at a., rate faster than would be given by' its longer lever arm, were this arm rigid. To sum it up, the combined actionspf these two mutually operated bearing points serve to lirst cut. off the fastener from the strip within the die portion 22, and thento snap the fastener down upon the surface of the glass in front of the driving plate as soon as the supporting finger is withdrawn from beneath the punch. At the .same time spring 60 is compressed so that the strip retainer isv urged against the strip under increased pressure holding the strip firmly.

The trigger lever has a downwardly depending portion 78 within which is lixedthe pin 63, before referred to, and ina vertical socket therein is slidably supported a trigger sear 79. Thissear has a latch shaped end 80 which may engage. the forward end of the ram 30- so that by rocking the trigger upwardly the iam is pressed rearwardly against the tension of the spring 22 until the latch face of the sear slips ofi' the ram allowing the spring to project it forwardly whereupon the driver engages and drives ioo the point into the sash. In order that the` vscar may re-engage the Y, plunger on release of the trigger it may retract into the portion 78 againstthe pressure of a spring 81 reacting between its' upper end and the up- It is desirable that the amount to which it is normally projected may be adjusted in order to determine the extent of retraction'imp'arted to the ram. For this purpose the seaiis notched through as shown at 82 and passed through the portion 78 of the trigger is a pin 83 milled out on one side as shown at 84 to furnish an abutment 85 projecting` across the slot 82. This pin 83 has at one end a screw-driver slot 86, as shown in Figure 8, for engagement with a tool by whiehvit may be rotated to adjust the effective height of the abutment portion 85. It may be fixed in adl justed position by means of a set screw 87.

As the trigger is raised and the ram carried rearwardly the bushing 36 impinges y on the sleeve 37- and retracts the feed linger later in feeding thefstrip. As the'trigger,

handle is allowed to descend lto its initial position the compression of spring 60 is reduced and the pin 63 re-enters the notch 62 and acts to raise the plunger 61 whereupon the spring 38 is allowed to actuate the feed finger to push the strip forward to bringanothersec-tion beneath the punch.

It is essential that the punch shall be given a proper length of "stroke so that it may properly cut the strip section but may not project downwardly sufficiently to be struck, by the driver. In order that this .important adjustment may .be effected, two Astops are provided'. The one shown at 90 is used to roughly adjust the movement of the trigger, and thereby of the punch, and serves also as an eicient bumper to receive the shock of the sudden movement of the trigger after the sear slips off the edge of the ram. This stop comprises a sleeve 91 threaded internally and slidable within a socket 92'in the under portion ofthe handle of the frame. This sleeve is adjusted in and out by means of a screw 93 threaded therein and held against upward movement by means of a collar 94.

The other stop (see Figures 5, 8, 9, and 19) is a headless set screw 95 located in a hole tapped through the cylindrical bar 54 of the punch lifter 53. Thisv set screw projects downward in the lifter passageway 55 toward the top of the strip retaining plunger, and is so adjustedy that when the bottom of the punch is even with the lower face of the frame members, or in other words the thickness of a fastener from the surface of glass, this set screw rests upon the top of the strip retaining plunger, thus' gaging the stroke of the punch in a positive and accurate manner.

In Figure 21 a modified construction of 'punch stop is shown in which a set screw 96 is threaded into the upper end of the punch lifter bar 54, this screw passing through slots in the spring .7 3 and its head 97 .aring in a counter bored hole 98 in the frame members. By turning this screw by means of a screw-driver inserted in the hole, the extent to which the punch lifter, and -thereby the punch, may be depressed, is regulated, by the head of the screw striking the base of the counterbore. l

While this invention has been describe in connection with glazing it is evident that many of thev desirable features thereof might find application for driving mechanisms and fasteners of other typesor for other pur- The term fastener has therefore oses. heenused in a generic sense in this case 'to e include glaziers points as lar devices. y l A Having thus described a preferred embodiment of this invention it should be evident to those skilled in the art that many well `as'other simi- 'changes-and modifications might be .made

therein .Without departing from its spirit or scopeas defined by the appended claims.

I claim: j r

1. In a machine of the class described, a pair of rods, one of said rods having a groovedl face to define with said other rod a guideway for a fastener strip, anda driver strip slidably pair of rods, one of saidrods having a grooved face to define with the other rod a guideway for afastener strip, a punch for said punch, and a member for driving the sections cut off by said punch slidably `guided on said rods.

4. lIn a, machine of the class described, means for supporting and guiding a fastener strip, a die, a unch cooperating with said die to shear ol sections of said strip to be driven, means to drive saidsections, a member movable after each drive to feed the stri to said die, and a member movable with sai feeding member to support the strip beneath said die.

5. In a machine of the class described, means for supporting and guiding a fas'- tener strip, a die, a punch coo erating withv said die to shear off sections o said strip to be driven, means to drive said sections, a member movable to feed the strip after each driving action and retracted during the f shearing'stroke of said punch, and a mem- `cutting off sections of said strip, one of said v rods having a die-portionlcooperating withT ber for supporting the strip beneath said die movable with said feed member to be retracted from said die to clear the punch on 'its shearing stroke.

6. In a machine of the class described,

means for guiding and supporting a fastener strip, means for cutting off sections of said strip, a driver member, a slidable ram connected to said driver member, a spring for urging said ram in one direction, means for moving said ram in the opposite directionV to tensionk said spring and to release said ram to allow the spring to impart a driving stroke to said driver, a feed member retractable with the motion of said ram to tension said spring, and a second spring interposed between said ram and feed member and tensioned on the driving stroke of said ram, said second spring imparting feed motion to said feed member. f

7. In a machine of the class described, means for guiding and supporting a fastener strip, means for periodically cutting off sections of said strip, resiliently actuated means for driving each section after it has been cut olf, and'means for intermittently feeding the strip inthe same direction as that of the driving stroke to said cutting olf means, a spring tensioned on the driving stroke of said driving means, and means for feeding the strip to said cutting olf means deriving its feedingA motion from said' spring.

8. ln a machine of the class described, means for supportlng and guidingv a fastener strip,'means for cutting off sections of. said strip, a spring pressed sleeve slidable on said supporting and guiding means, a `fastener driving member carried by said sleeve and to which driving impulses are imparted by said spring, a collar slidable on Y said supporting and guiding neans `and within said sleeve, a member for feeding the strip lixed to said collar, and a spring interposed between said sleeve and -collar and ten-4 sioned by the driving stroke of said sleeve to impart feed movement -to said strip.

9. In a machine of the class described, means for supporting and guiding a fastener strip, means for cutting off sections of said strip, a spring pressed sleeve slidable on said supporting and guiding means, a fastener driving member carried by said sleeve and to which driving impulses are imparted by said spring, a collar slidable on said supporting and guiding means and within said sleeve, a member fixed to said collarl for feeding the strip, a spring inter-- posed between said sleeve and collar and tensioned by the driving stroke of said sleeve to impart feed movement to said strip, and means for restraining the feed of said strip until after the driving stroke of said sleeve.l

,10. In a machine ofthe ,class described, means for supporting and guiding a fastener strip, means for cutting oi sections of said strip, means havin driving and retracting strokesfor driving said sections, a

spring tensioned Aby YtheA driving stroke of to cut the strip.

said driving means, and means lcomprising a member positively retracted by the retracf tion of said driving means and actuated by said spring after each driving stroke to feed the strip to said cutting'oiI means. 4

11'. In a machine of the class described, means for supporting and guiding a fasten- 'lol er strip, means for -cutting sections from said strip, means having driving and re- .tracting strokes for driving said sections, a

spring for imparting driving strokes to said driving means, means for feeding said strip, means for holding said strip against feeding, and lmanually operated means for actuating said cutting ofi' means, impartingy retracting strokes to said driving means, and rendering said strip-holdingmeans operative.

12. In a machine of the class described, y

means for supporting-and guiding a fastener strip, means for cutting off sections of said strip, means for driving said sections, means for holding the strip against movement, a spring interposed between said cutting off means and 'said stripfholding means acting to normally hold said vcutting off means retracted from the strip and said holding means pressed against the strip, l

and means yto actuate said cutting oi means 13. A machine of the class described, means for supporting and guiding a fastener strip, means .for cutting 0E sections of the st rip, means for driving said sections, a spring for impartingv the drivingstrokes to said driving means, means actuated by said driving means for feeding the strip to said cutting ofl means, a retainer for preventingy such feeding motion, and a mem-ber* for actuating said cutting off means tol cut off a strip section and to retract said driver, and thereafter to move said retainer from the strip to allow said feeding means to feed the strip.

14. In a machine of the class described,

driving stroke of said 'driver to impart feed-- ing impulse to said finger, a lever actuable in one direction to depress said punch, a scar carried\b when sai punch is depressed to retract and said lever and movable therewith release said driver, and a member carried by said lever acting to raise said retainer v separation of said allel passa other passage,

from the strip to allow the feed feed theA strip when such lever is to its initial position.

15. In a machine of the class described, a frame having a pair of substantially pares therein, a'. punch slidable in passages, a bar lslidable in the a spring normally retaining and a connection between releasable byA relative bar out of finger to returned one of sai said bar upwardly, said bar and punch movement of said punch and parallel relation. 16. In a machine of the class described, a frame having' a pair of guideways, va punch slidable in one of` sald guideways and-having a lateral .slot merging into an enlarged perforation, a bar slidable in the other ofsaid guideways and movable .to actuate-said punch, and-.a by said bar and fitted in the perforatlon of said punch,

unch and bar' but actuable to pass through said slot to disengage said bar an'd `p unch when said Abar and punch aremoved out of their normal anguar relationship.

17; In a machine of the class described, a spring pressed ram, a trig er, a sear having a. notch therein and slida le in said trigger for gement with said ram, whereby rocking o said trigger in one direction retracts and releases said ram, a spring normally projecting said sear outwardly of said trigger, and a attened pin in said trigger engageable in said. notch, and angularly movable to adjust the extent of projection of said Sear. Y

18. In a machine of the class described, Va frame having a handle portion, a trigger 'lever pivoted adjacent one end of said han- .,:fdle portion antlfmdaptedwto bei-:pulled .there- .toward by the fingers of an operator graspmeans to present a fastener-- ing said handle, strip, a fastener driver carried by said frame and actuable by said lever, a punch movable in said frame and positively actuable on the rocking of said lever to` punch a section from said 'strip during a portion of its stroke and resiliently-actuable during the remainder of its stroke present said section into driving relation to said driver, and an adjustable stop carried by said handle portion to limit the motion of said lever and thereby limit the stroke of positive actuation of said punch.

19. In a machine of the class described, means for guiding and supporting 'a fastener strip, m'eans for driving sections of said strip, a. reciprocating punch, and means for actuating said ,punczh positively to cut off a section from said strip and then yieldmgly topresent said strip to said driving` means. f

20. In a machine of the class described,

flattened pin carriedy said-pin normally preventing v tener strip, a 'punch for cutting sections from said strip, means for actuating said pimch positively during the cutting portion yof itsv stroke and resiliently lduring the remainder of itsstroke, and means for limiting the extent of motion of said punch comprising a screw having threaded connection with said punch andl aiixed member engageable by the head of said screw.

22. In a machine of the class described, means forsupporting and guiding a 4fastener strip, means for driving' sections vof the strip, and a member acting with a relatively slow powerful stroke to cut oil the Sections from said strip and with a' relatively fastless powerful stroke to present the cut sections to said driving means.

23. In a machine of the class described, means for supporting and guiding a fastener strip, means for driving sections of the strip, and a member acting with a relatively slow powerful stroke to cutofi' the sections from said strip and with a relatively fast less powerful and resilient stroke to present the cut sections to said driving means. 24. In a machine of the class described, means for supporting and guiding a fastener strip, means for driving sections of thel strip,f a punch for cutting off the sections of said strip and presenting .the cut off sections to saidy driving means, and a lever having relatively long and short arms `for actuating said punch, said lever acting 1m through said relatively short arm to effect the cutting oi action of the punch and through said relatively long arm to effectl the presentation of the cut section to said driving mechanism. i

25. In a machine of the class described, means for supporting and guiding a fastener strip, means for driving sections of thestrip, a punch for cutting off the sections of said* strip and presenting the cut 120 off sections to said driving means, and a lever having relatively long and short arms for-actuating said punch, said lever acting through said relatively short arm to effect the cutting off action of the punch, and m5 through said relatively long arm to effect the presentation ofthe sections to said drivlng mechanism, said long arm being resillient. `means for supporting and guiding a fas-` 26. In a machine of the class described, xa

means for supporting and guiding a fastener strip, means 'for driving sections of said strip, a punch for cutting of the sections rom the strip and presenting the cut off sections to said driving mechanism, a lever for actuating said punch pivoted adjacent to said punch and having a relatively long resilient arm and a relatively short rigid arm extending therefrom, said rela- 10 tively short arm engaging said punch during the cutting off of sections from said strip to effect a' relatively slow powerful motion thereto, and said vrelatively long arm acting during the presentation of the cut i signature.

. GUY HUBBARD.

Images