US1630334A

US1630334A - Spring compressor

Info

Publication number: US1630334A
Application number: US109663A
Authority: US
Inventors: Feather David Charles
Original assignee: FEATHER MOTOR APPLIANCE COMPAN
Current assignee: FEATHER MOTOR APPLIANCE Co; FEATHER MOTOR APPLIANCE COMPAN
Priority date: 1926-05-17
Filing date: 1926-05-17
Publication date: 1927-05-31
Anticipated expiration: 1944-05-31

Description

May 31, 1927.

2 Sheets-$heet 1 Filed May 17, 1926 HVVENTOR ATTORNEY m INVENIOR.

2 Sheets-Sheet 2 D. C. FEATHER SPRING COMPRESSOR Filed May 17, 1926 Patented May 31, 1927.

DAVID CHARLES FEATHER, on

Application fiied May 17,

It is an provide a tool of the above described type, which in interchangeable and re-' connection with movable aws, has a simple mechanism to lock the 32.111611) their operative relation to the lever-members of the toolswithout bolts, screws or other similar Another object of the invention is to lock and unlock the jaws'by simple adjustment of a ratchet-bar provided in connection with the lever-members of the tool for lock-.

ing the latter against retrograde motion when closed together for the compression of a spring or other object engaged by the of the tool in its open position;

along the ;l1I1e 22,

jaws. A further object resides in construct ing the locking device so that it is readily released to return the tool to its open condition and still other objects reside in features of. construction and a novel arrangement of parts as are fully set forth inthe following detailed description of the invention.

An embodiment of the invention has been illustrated in the accompanying drawings in the several views of which like, parts are similarly designated and in which,

Figure 1 representsa sectional elevation Figure 2, a section Figure 1, drawn to an Figure 3, a similar line 33 Figure 1;

Figure 4, a fragmentary top-view7of one of the jaws of the tool looking in the direction of thearrow A in Figure 1;

Figure 5, an enlarged perspectivev View of one of the removable jaw-members of the tool; I

enlarged scale Figure 6, a fragmentary sectional view of the tool showing its Jews in closed pos1- tion;

Figure 1, a similar view of the tool equipped with crossed aws of different construction which are moved apart when the lever handles ofthe tool are closed together Flgure 8, a fragmentary elevation of the Q showing its tool shown in Figures 1 and 6 a valve of application for the removal of an internal combustion engine; and,

DENVER,

the pressure of their springs, and comfastening means.

channel-section and v 16 whic section taken on the bifurcated at one end ooLoRaDo, ASSIGN-OR o T yZEEATI-IER MOTOR APPLIANCE COMPANY, or DENVER, OOLGRADQ, A oonronarron or com- RADO. V p r I SPRING COMPRESSOR.

@ 26. Serial No. 169,663.

s Figure 10, a fragmentary elevation of one of the lever-members ofjthe' tool with- I out the jaw, looking in the direction'of the' arrow B in Figure 6. Y V

Referring further to the drawings, the tool comprises two crossedlevers 5 pivoted together as at 6, to'provide jaw-arms 8. "The levers are of channel-section, one passing. through slot of the other, and the jaw-arm'shave at their extremities outwardly projecting lugs 9, for

their pivotal connection in notches 1010f 'slide-pieces 12 whichcooperate with links 13 r for the support and connection of the jaws of the tool. Thelinks above referred to are of pivoted at their rear extremities to the handles'ofgthe levers by screw-pins 14. Their opposite are provided with inturned flanges 15 to form guide ways for the sliderpieces on the respectiv'ejawl-arms. I

The slide-pieces which are likewise of channel-section have parallel side-flanges. h fit slidably in the I guide ways of the links. The notcheslt) cooperating with the lugs'of the'jaw-arms for the pivotal connection or the parts, are formedat the forhandles ,7 and end-portions ward ends of the flanges 16 and the body 7 portions of the 'slide-p eces engaging with v the inner surfaces ofthe links, have central slots 17 which terminate in enlargements 18 at'the forward end of the pieces and which register with transverse, spectiye links, corresponding in size with the enlargements.

The jaw-members of of a flanged blade 20 of channel-section to straddle a valve stem or other-similar part of an engine to which the tool is applied, and having atits opposite end, a headed jbutton2l bent at right angles to enter and slide-pieces on the. jaw-arms of the levers. The flanges 22 of the jaw-members 'h'aveinwardly projecting bosses 23 which by engagement 7 in correspondingly, formed notches 24 at the forward ends of the links, determine the position of the jaw-members with relation thereto and cooperate with the headed buttons to hold the members against 1 relative displacement In the. operative the tool each consists slots 19 in the rethe-slots of the links fotone of the links, 25, which loosely pro ects through 2' t h *b'uttonsextend loosely through I locked in connection with the r they can the'hea'dsot the buttons engage the slid of their slots.- It are thus firmly links and that be detached only after the enlargements of the slots in the slide-pieces have pieces at opposite sides will be observed t at the aws been brought in register with the corresponding transverse slotsoit the the passage of the heads on the buttons or" links to permit of the jaws. P-ivoted on one of the lever members, preferably by means of the pivot pin is a curved locking bar a longitudinal slot 26 of the other lever. The lock ing bar has at its inner curved edge, a series of ratchet teeth the slottedlever at the slot through which the bar ratchet bar engaging the edges of the slot movement of the V is in its normal position and H LL " A' coiled spr1ng28 connecting tion in which I AsLpring 32 27 adapted to engage with forward end ofthe extends, to lock the two' levers in their adjusted positions.

the bar with the other lever at a rearward point thereof tends to maintain the bar in its normal posiit engages'at' the rearward end or the slot26 as indicated in Figure 6.

' Across pin 29 at the free end of the in notched seats in 26 limits the opening lever handles when the bar a heel 31 at the opposite end of the bar provides a thumb piece for the movement of the bar from its nfirmal position toward the opposite end of t e i 2 spring 28. l V I V coiled around the pivot of ithe levers "7 in engagement with the'latter',

'functionsto return the levers to their normal open position, after they have been, closed together by pressure upon their handles in the operation of the tool.

When the tool is in its normal open position, the cross pin atthe blocking bar, rests in the notches of the slot 26 and the enlargement of the slots in the slide-pieces'12 are out oi alinement with the I transverse slots 19 in thelinks l3. Thejaws 20 are thus locked in" rigidconnection'with f the links by 23 in thenotches 2st at the ends of the links and by, the engagement of 7 their headed the engagement of their bosses buttons at'opposite sides of the slots 12 of V the slidepie'ces.

' lever arms In order to Compress an object such as the V valve-sprin s 34 shown in Figure 8, the are pressed together with the result that the locking bar isreleased from the notches 30. Atter the spring has been compressed to the cesired extent by the engagement ot the jaws at opposite ends therethe alined V obviously holds the" bar turning their slot agalnst the resistance of the free end of the jaws and tion s, particularly with reference 'moved about its pivot by pressure on the heel '3l to cause its ratchet teeth 27 to engage he spring 32 in its adjusted Lpo'sibe removed with the valve-spring held firmly between its with the end of the slot 26. I

tion 'so that the tool may jaws. spring, it is dle 7 or the spring 28 will compel the ratchet bar to disengage the forward end of the slot and returnto its original position at the opposite end of the same. 7

The levers of the tool'are now 'tree to spread apart until their movement is arrested by the return of the cross pin 29 at the end of the ratchet bar the slot To subsequently: release the valvebut necessary to press the han the levers are pressed together to'releasethe cross pin 29 from; the notches and the lever tool slightly together when the in'the; seats-3O of 7 To detach the jaw-members 20,

arm is then'moved forwardly to cause the cross-pin to engage with the surface or the lever arm in which the slot126 is formed, at

opposite sides o'l Figure 1. The'spring 32 again holdsthe bar in its adjusted position in which it engages the forward end of the slot and in this position of the tool, thelevers are'broughttogether adistance suiiicient to move the transverse slots of the links to register with the corresponding enlargements of the slots in the slide pieces. The buttons at the ends of the jaws are now free to pass through the alin'edslots and the jaws may be removed by bosses in the notches at the ends of the links until the buttons are free. It is obvious that the-jaws may be replaced in a similar manner. Jaws of ditl'erent construction maybe attached to the levers or the tool by the same means, as indicated in crossed bypro ecting a shank 37' on one through a slot of the other. The'tool in this form will separate its jaws byapressure exerted on its handles for the compression of a spring by engagement witha relatively stationary abutment. v i

The llfillCllBS or the tool are slightly curved in one direction'as shown in Figure 1 and this taken together with the fact that the 36 are interchangeable either with, each other or with jaws of diiiei'ent form; adapts the tool for usetor the. comdiiterent condi to the arrangements of parts found pression of springs under many varying [in enginesof dilierent makes and types.

I It will be observedthat th'e j aws are held in place without bolts, screws or other similar'tastening. means, thatithey may be instantlyremoved or replaced by the simple expedient of a slight pressure upon the handles of the tool and adjustment of the locking bar and that the latter performs in the slot as illustrated in i -Figure 7 of the drawings, showing two aws '35and 36 addition to this distinctive function, the

opening movementof the levers and of lockfunctions of determining the extent of] the ing the levers in any of a' plurality of Closed positions.

Incase, iIlthe use of crossedjaws of the character shown inFigure 7, it is inconvenientto bring the buttons on both oi' them in register with the slots of the links and slide-pieces, the head oi the jaws may be eliminated and the I v prising crossed levers, a

fastened in place by shown at 88. V

Having thus described my invention what I-claim and desire to secure by Letters Patent is: I

11[ A tool of. the character described comresist their operative piece-on an arm. of one "of the ,levers and [having a slot endingm a wider opening,a

link pivoted on the other levera'nd having a slot alined with the other slot, a aw-member on the link, havinga headed button ex-f tending through the slot's,-a'n'd a locking device adapted to hold the levers .in an .adjusted position in which the slot of the link registers with the opening of the slide-piece to provide a passage for-the head of the button.

2. A tool of the character described C0111- prising crossed levers, a spring to yieldingly resist their operative movement, a slidepiece on an arm of one of the levers and having a slot ending in a wider opening, a

link pivoted on the other lever and having a slot alined with the other slot, a jaw-member interlocked with the link at an end thereof and having a headed button extending through the-slots, and a locking device adapted to hold the levers in an adjusted position in which the slot'of the link registers with the opening of the slide-piece to provide a passage for the head of the button.

3. A tool of the character described comprising crossed levers, a spring to yieldingly resist their operative movement, a slide-piece 4. A tool of the character described coma spring to yieldingly prising, crossed levers, resist their 0 erative movement, a. slide-piece on an arm of one of thelevers and having a slot ending in a wider opening, a link pivoted on the other lever, provided with a of the button of one means of a set-screw spring to yieldinglyi' movement, a" slide- I g of a plurality of predetermined relative to provide provide a passage'for the head guidewav for theslidefpieceand having a i slot alined with the other slot, a jaw-member on the. link, having a headed button exvice adapted to holdthe levers in "an; ad-

justedposition in which the slot oi the'link 'tendingthrough thejslots, and alo c king dc v I registers with the opening of the slideip'iece provide apassage for-the head of the button. r a

tool .ofthe character described com-' prising crossed levers, a spring toyieldingly resist their. operative movement, a slide- .piece on an arm of onset thelevers and having a slot: ending a wider opening, a link pivoted. on the other lever 'an d'having a slot alined with V the other :Slot, a jawmember on the link, havinga headed but ton extending through the slots, and a lockmg device-adapted to hold the lev'erslinany P 8.5 hSl'tlOHfi-lll one of whichthezs'lot ofthelink registers with the opening off-the slide' piece av passage for the head: of the button.

6. A' tool of the character described cam prising crossed-levers, a spring to yieldingly, resist their operative'fmovement, a slidepiece on an arm of one of the 'levers and. having a. .slot ending in a wider opening, a link pivoted on the other lever and'having a slot alined with the other slot, a jawmember on the link, having a headedbutton extending through the slots, and a locking device adapted to hold the levers in two adjustedpositions for the operation of the tool and in a third position'in which the slot of the link registers with the opening of the slide-piece to provide a passage for the head of the button in the applicatlon or removal of the jaw.

prising crossed levers, a spring to yieldingly resist their operative movement, a jaw supported by an arm of one lever, lock-mechanism for the jaw, controlled by the levers, to release the same in a determinate adjusted position of the levers, and a locking'device, adapted for adjustment to determine said adjusted position of the levers.

. I 7. A tool of the character described com- 7 8. A; tool of the character described com- 7 prising crossed levers, a spring to yieldingly resist their operative movement, a jaw supported by an arm of one lever, lock-mechanism for the jaw controlled by the levers, to

release the same in a determinate adjusted position of the levers, and a locking device adapted for adjustment to hold the levers in an'ygof a which the jaw is released.

9. A toolof the-character described com-- prising crossed levers, a spring to yi-eldingly resist their operative plurality of predetermined positions, inclusive of the adjusted position in movement, j'awsSupported on corresponding arms of the lever,

lock mechanism for the jaws controlled by 1 resist in a determithelevers, to vrelease the same 7 levers, and a nate I adjusted positionof the coking device adapted for adjustment to determine said adjusted position of the levers. V

I '10. ,A tool of thezcharacter described coin prising crossed l-evers,'a spring to yieldingly their operative movement, a j avv sup-4 ported by an arm of one lever, look-mechanism forthe javv controlled by the levers," to determinate adjusted and a spring-con-o release the same in a position ,of the levers, trolled toothed bar pivoted on one lever and cooperating With the other lever to hold the levers in any of aplurality ofpredeterinined ,positi'ons inclusive/of the adjusted position in which the jaw is released:

A tool of the character descrihedcom prising crossed levers, a spring to yieldingly 'resist their operative movement, a jaw supported by an arrn of one lever, lock mechanisrn forthe j aw controlled by the leversto Hrelease the same in a s deterininate adjusted position of the levers; one of thelevers having aslot notcheclat one end, and aspring controlled locking harpivotedon the other lever and projecting through release the same in a ing a slot notched Ysition, and

the lever" at theopposite end of theslot whereby to hold thelevers closed together the slot, the

bar having at its free end a pin adapted to engage in the notchof theslot, or to engage with the slotted lever outside the notch to hold the levers in their controlled locking- .lever andfprojeoting through the slot, the

a'pin adapted to bar having at its free end engage in the notch ofthe slot, orto engage ith the slotted lever to hold the levers in their said adjusted Pothe her having teeth to engage against the resistance oftheir spring. V In testimony whereof I 'havehereunto afiixed my signature,this-th day May,

I DAVID. CHARLES FEAT ER.

one of the levers hav-v outside the notchsaid adjusted posiion. 'o 1 12. A tool of the character described 'com- 1