US1451381A

US1451381A - tunnell

Info

Publication number: US1451381A
Authority: US
Publication date: 1923-04-10
Anticipated expiration: 1940-04-10

Description

H. E. TUNNELL ASS , Apr; '10, 1923.

EMBLING MACHINE Filed Apr.

2 sheets-sheet 1 NM AWN INVENTOR ff r/y E. Tunnell ATTORNEY.

Apr. 10, 1923.

Hw 5'. nm'ezz BY ATTOI'M/EY.

Patented Apr. 10, 1923.

.UNITED STATES PAT , HARRYE. TUNNELL, or NEWYQRK, in. Y.

1,451,381 m OFFICE.

ASSEMBLING MACHINE.

Application 'fil ed April 5, 1920. Serial No. 371,542.

To all whom it may concern Be it known that I, HARRY E. TUNNELL,

a citizen of the United States,,and resident of the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements, in

Assembling Machines,.of which the followin is a specification. I My present invention relates to machines or apparatus for assembling the parts of articles which, are fitted together with parallel joints, so that they may be assembled by movementand pressure in one direction. The object of this invention is to provide a simple apparatus of this class, particularly adapted forassembling. struc tures embodying tubes both ends of which are'to be connected with heads or casings, said ends being parallel. As an instance of such an article, I will name fire-extinguishers of the type comprising a pump barrel and fluid-conveying tubes extending alongside such barre e a A speclfic example of my. improved assembling machine is shown in the accompanying drawings, in whlch Fig. 1 is a partial plan view of the apparatus; Figs. 2 and 3 are longitudinal vertical sections through the center or axis ofthe apparatus, showing the, parts intwo different positions; Figs. 4

1 and 5 are transverse vertical sectionson lines 414 and 5-5 respectively of Fig. 1; Fig. 6 is an end view-of a cradle forming part of the apparatus, showingsaid cradle in the closed or operative position; and Fig.

. 7 is an end view of the same cradle opened 1 ed shank' l iflof an abutment 14, adjustable for, the insertion of the parts to be suping parallel to the ported thereby.

Upon a table or other support 10 are secured rigidly two-blocks or distance pieces secured thereto as by screws -13.- In the longitudinal axis of the apparatus, the plate 13 is provided with a screw-threaded'aperture'to receive the correspondingly-threadlengthwise by turning it about said, aXis, and locked in position, after adJustment, by means of a lock-nut 15. The abutment 14 maybeprovided with holes 14"v for the insertion of a suitable pointed tool for turn erably cylindrical.

On-these blocks is fastened rigidly a baseplate 12, with a bracket or end plate 13 projecting therefrom upwardly at one end of the base, and

ing it, and has an axially projecting stud 14* on its inner side, said stud being pref- At the other end of the base 12 a fulcrum-block 16 is secured rigidly, as by means of a nut 17 fitted under the base 12 upon a threaded shank 16 which extends through a slot 12' at this end of the base. On this block 16 is located the transverse horizontal fulcrum pin 18 for a toggle link .19, the other end of which is connected pivotally at 20 with a similar link 21. That end of the link 21 which is nearest the abutment 14-, is connected pivotally at 22 with a slide 23 sliding horizontally along longitudinal guides 24. and formed. at its inner end with'a transverse plate 23 forming a presser, as will be explained hereinafter.

At the point 20, the

toggle links

19, 21 are connected with an operating rod 25 extending downwardly through a longitudinal slot 12 of thebase 12and through similar slots 11" and 10' of the block lliand table 10 respectively the lower end of said rod being connecte at 26 with a pedal 27 fulcrumed at 28, a spring 29 tending to restore these parts to the normal upper position shown in' Fig. 2. Other suitable mechanism may be substituted for operating the

toggle links

19, 21.

Between the stationary abutmentor backing 14: and the

sliding presser

23, 23 is located a cradle adapted to support one or more of the parts to be assembled, said cradle being freely slidable in adirection parallel to thepath of the presser. In. the specific construction shown, the cradle comprises three members connected by hinges extendpath of the presser and One of these parts, 30, may cradle base, and is provided of thezcradle. be termed the with longitudinal recesses o-r sockets 30', 30", 80* and 30*, the recess 30* being on one side of the recess 30, while the recesses 30" and 30 are on the other side thereof, with the recess 30 agb'ove the recess 30". To .the end-of the cradle" base 30 which is nearest the presser23, 23 is secured rigidly a head 31, as by means of screws '32, said head bein t-ively.

recess At the free longitudinal edge of the section 34 is another hinge 36 for a third section 35, having longitudinal recesses and 35' adapted for registry with the corresponding recesses of the base 30 and section 31, and also having a recess 35 adapted recesses of the base 30 and section 34 respec- To secure a proper alignment of the sections when folded upon one another in the operative position shown in Fig. 6, the

section 35 may be provided with a pin 35 adapted to enter a socket 31 of the section 31. The various sockets or recesses of the sections 31. 34, and35 are preferably enlarged on the

side facing thepresser

23, 23, for a purpose to be set forth presently. The cradle is guided in its longitudinal movement by means of vertical bolts 37 screwed into the bottom of the base 30 and extending through longitudinal slots 12* of the .base plate 12. sleeves 38 being preferably fire-extinguisher,

. eesses 30',

[One of which mounted loosely on said bolts, while washers 39 located on the bolts under the plate 12 prevent any vertical movement of'the cradle. The heads of the bolts 37 and the washers 39 are adapted to move in the space 40 left under the plate 12 between the blocks 11, In order to reduce the friction surface on which the cradle slides, I may secure two transverse bars 41 to the upper face of the plate 12, and the opposing edges of these bars may also serve as stops to limit the longitudinal movement of the cradle. The bars 41 may be secured to the plate 12 at different points according to the particular place at which it is desired to stop the cradle in each individual case, and this is. a more convenient way to limit the movement of the cradle than to rely on the ends of the slots 12* to act as stops.

The drawings illustrate the use of my invent-ion in assembling certain parts of a viz. a head or casing A, a pump barrel B, fluid-conveying tubes O, D, E parallel to said barrel, and a second head or casing F at the end opposite to the head A. The latter has a socket A of cylindrical shape to receive the axially-projecting stud 14*. of the abutment 14, which abutment is first adjusted lengthwise to the proper po- 'sition for-the work required. The pump barrel B is placed in the recesses 30. 31'

while the cradle or rather its

head

31, 34, 35

in theopen positionFig. 7, and similarly, while the cradle head is in this open position, the tubes C, D, E are placed in the re- 31 and 30*, 31* and 30 respectively, while the head F will be placed so that three of-its four longitudinal nipples is shown in Figs. 2 and 3).will fit into the enlarged portions of the recesses 3 1". d re p ct vely. the f u n pple, whi h 1i at a g er l el, no ing in engagement with? any part of the to register with the corresponding cradle at this time. Then, while the operator holds the head F in this position, the cradle head is closed to the position Fig. 6, by swinging its sections 34, 35 on the

hinges

33, 36 respectively, thus bringing the fourth or upper nipple of the head F in engagement with the walls of the enlarged portions of the recesses 34, 35 while the other three nipples are also engaged by the walls of the enlarged portions of the recesses35*, 354. and 34", whereby the head F is held in this position steadily even after the operator has withdrawn the support of his hand. The closing of the cradle head also brings the barrel B and the tubes C and D into engagement with the walls of the re- F will. have to be held by hand until it is.

engaged by the presser head 23; if the section 31 also is omitted. the head F would have to be brought by hand into registry and engagement with the ends of the barrel B and of the tubes C. D, E. and held in this position until the advancing presser plate 23 establishes afirm relation between the head F and the barrel and tubes. I prefer.

the sectional cradle head construction shown. The head A is provided with sockets or nipples to receive the ends of the barrel B and of the tubes C, D. E, one of these sockets being indicated at A in Fig. 2.

The ends of the barrel B and of the tubes C, D. E are preferably tapered or sharpened as indicated in Figs. 2 and 3 so that they may more readily enter the corresponding sockets or nipples in the heads A and F; the outside diameter of this barrel and of the tubes (except at the tapered ends) is slightly larger than the inside diameter of the sockets or nipples, so that the endsof the barrel and of the tubes will be gripped firmly by said sockets when driven into them as will be set forth presently. The barrel B and tubes C, D, E are generally made of a metal which is harder than the one of which the heads A and F consist.

Fig. 2 illustrates the position of the parts after the barrel B, tubes C, D, E, and head F have been placed in the cradle and the latter closed, while the head A. has been placed on the stud 14* and turned about the axis of said stud until the several nipples or sockets of'the head A are in proper regtry with the adjacent ends of the barrel By depressing the the head-F and by contact "with said head slides the entire cradle with the parts supported thereby, toward the abutment 14; As

the cradle moves in this direction, the ends ofthe barrel and of the 'tubee enter the sockets of the head A, and are stopped there'- by temporarily; The cradle then continues its sliding movement while the barrel and tubes remain stationary, or substantially so, in the slideways or recesses of the cradle, and

. this relative movement causes the other ends ofthe tubes and of the barrel to be driven into the corresponding sockets of the head F, 3

7 since the latter continues to move in unison j shoulders providedin said heads-, and fiuidq wvith the cradle. At the 'sane'time, orimmediately thereafter, the opposite ends of the barrel and of the tubes are driven into the sockets of the head A, so thatfinally the position of the parts is as in Fig'. 3, the

sockets of the heads A, F, expanding slightly to allow the ends of the barrel B and of the tubes C, D, E to enter as far as the' stop tight joints being thus' 'formed at the ends of the barrel and of the tubes ,'it being under stood that the material of the heads A; F

fits tightly, with contractile tension, againstltheouter surfaces of said barrel tube ends. Preferably, the constru'ction is so arranged that the movement of the presser parts will be arrested before the toggle links 19, 21 come into exact alignmen't, so that the spring 29vwill readily restore these parts to; M

"able relatively toeach other, a cradle located between said presser and said abutthe normal position Fig. 2 as soon as'the pedal 27 or other actuating member is released. The cradle will then be moved by hand toward the presser, to an extent suflicient to release the head A from the stud 14*, the sections 34, 35 of the cradle head are swung to the open positionFigs. 1 and 7 and the assembled unit (heads A and F,barrel B, and tubes C, D, E) can be lifted readily out of the cradle sockets 30', 31', 30", 31", 30*, 31*, and 30 respectively. Y

The shoulders at the inner ends of the socket enlargements of the cradle head will compel the assembled unit to move with the cradle as the latter is separated from the abutment 14, thus pulling the head A away from the stud 1 l-* and enabling the assembled unit to be removed readily from the cradle, after opening the cradle head, if such head is made with the extra sections 34, 35. a

Various modifications may be made without departing from the nature of myinvention as defined in the appended claims.

I claim as my invention:

1. A machine of the character described,v

comprising an abutment located at oneend ing perfectly ing of such parts on said cradle, it will stay 1n any position'to which it may bebrought of the machine, a sliding presser at the other end of the machine, and a cradle adapted and located'between Sfild abutment and said "presser, and freely slidable relatively to the presser and'to the abutment in a direction parallel to the path of the presser, said cradle being perfectly'looseso that, during the placing of such parts on said cradle,

it will stay in any position to which it may be brought between the abutment and the presser." I

2.- A machine of the character described, comprising-a stationary abutment, a presser located at a distance from said abutment and movabletoward and from the same, and a cradle located between: said presser and said abutment and movable freely relatively to the presser and to the abutment in the same direction as the presser, said cradle being perfectly loose so that, during the placing of suchparts onsaid cradle, it will stay in any "position to which it may be brought between the abutment and thepresser.

3. A machine of the character described,-

comprising an abutment, a presser spaced therefrom, means for effecting relative move mentiof said presser and abutment to vary the distance between them, and a cradle freely movable between said. presser and abutment relatively to both of them in the direction of such relative-movement, said-cradle beloose so that, during the placbetween the abutment and the presser.

" machine of the character'described,

comprising'an abutment and a'presser'movment. a base having guide slots extending lengthwise, in the direction of said relative movement, projections .extending from the cradle into said slots, transversely to said direction, and rollers mounted on said projections and engaging the walls of said slots. 5. A machine of the character described, comprising an abutment and a presser movable relatively to each other, and a cradle located between said presser and said abutment and provided with supporting slide ways in which some of the parts being'assembled may move lengthwise during the said relative movement. I 6. A machine of the character described, comprising an abutment and a presser movable relatively to each other, a cradle located between said presser and said abutment, a base having a guide surface extending lengthwise, in the direction of said relative movement, a projection extending from said cradle adjacent to said guide surface, transversely to said direction, and a roller mounted on said projection and engaging said guide surface.

to support some of the arts to be assembled,

able relatively tov eachother, said abutment being provided with a stud projectmg toward the pressertopivotally support one of the parts to be assembled, and anarticlepresser and said abutment.

supporting cradle located between said presser and said abutment.

8. A comprising an abutment and a presser movable relatively to each other, oneof said elements being provided with a part projecting toward the other element, in the direction of such relative movement, to support one of the parts to be assembled, and an article-supporting cradle located between said 9. A machine of the character described, comprising an abutment and a presser movable relatively to each other, and a cradle located between said abutment and said presser and including a cradle head made of separable sections provided with registering recesses for engaging the article being assembled.

10. A machine of the character described, comprising an abutment and. a presser, vmovable relatively to each other, and a cradle located between said abutment and said presser and including a cradle head made of separable sections connected by hinges parallel to the direction of such relative movement, said sections being adapted to engage the article being assembled.

11. A machine of the character described,

comprising an abutment and a presser movable relatively to each other, and a cradle located between said presser and said abut-1 ment and including a cradle head made of machine of the character described,

sections connected by a plurality'of parallel hinges and; adapted to engage the article being assembled,

. 12. A machine of the character described, comprising an abutment and a presser movable relatively to each other, and a cradle located-between said presser andsaid abutment, and includinga cradle head made of hinged sections adapted to embrace part of the article being assembled.

. 13.,A 1i1achine of the character described, comprisingan abutment and a presser movable relatively to each other, a cradle located between said presser and said abutment, at base having a plurality of spaced guide surfaces extending lengthwise, in the direction of said relative movement, and

projections extending from said cradle transversely to said, direction and engaging said guide surfaces.

14, A machine of the character described, comprising an abutment and a presser mov-. able relatively to each other, said abutment being adjustable lengthwise, in the direction of such relative movement, and a cradle located between said presser and said abutmenta 15. A; machine of the character described, comprising a table provided with spaced cross bars on its upper face, an abutment at one side of said cross bars, a longitudinally-movable presser on the other side of said bars, and a longitudinally-movable cradle located between said presser and said specification. HARRY E. TUNNELL.