US1465984A

US1465984A - Printer's quoin

Info

Publication number: US1465984A
Application number: US530569A
Authority: US
Inventors: Harry H Hancock
Original assignee: HENRY A SAWYER
Current assignee: HENRY A SAWYER
Priority date: 1922-01-20
Filing date: 1922-01-20
Publication date: 1923-08-28
Anticipated expiration: 1940-08-28

Description

Aug. 28, 1923.

H. H. HANCOCK PRINTER S. QUOIN Filed Jan. 20. 1922 Invenlor. flariyfl by I Hancoafif.

?atented Aug. 28, 1923.

Lair

HARRY H,HAI\1'COCK, or sW-nnrrsoor'r, MASSACHUSETTS, Ass GNon sAWYEn', OF'LYNN, MASSACHUSETTS. Y

rnrn'rnns eUoIn.

s"tar Application filed January 20, 1922. .Serial N 0. 530,568. 7 i

ToaZZ whom it mag concern:

Be it known that I, -HAnnY H. Hiinoooir, a citizen of theUnited States, residing at Swampscott, in the county, of Essex and State of Massachusetts, have-invented certain new and useful Improvements in Printers" Quoins, of which the following is a specification. I r p Heretofore printers quoins have been made in which thequoin comprises two side members which areadjustable by Im'ea-ns of a wedge, the side members being provided with 'means for expanding and contracting the quoin' by means .of said wedge,-'and with. means for guiding the side members during the operation ofexpanding or contracting'the quoin. Under the present in-- vention, one of the objects is to make such a quoin as narrow as possible, the same being suitably constructed. as to the side members and the expanding screw as to render this possible. Anotherobjeot is to avoidthe necessity of especially constructing the wedge for the purpose of contracting the side mem V bers, this being accomplished by the use of suitable springs, which are preferably concealed. 0 01101 7] objects are to provide .a printers quoin which is economically manu factured, and which isefficient in use.

These beingamong'theobjects of the present invention the same consists of certain features of construction andcombinations of parts to be hereinafter"described,. and then claimed with reference to the accompanying drawings illustrating a desirable embodiment of the invention, in which:

v Fig. 1 is a perspective view of the improved quoin; w Fig. 2 is a plan; Fig. 3 is a side elevation; r l Fig. 4: is a plan,-showing the quoin eX- panded; and Y Fig. 5 55, Fig. 3. v v

The side memberslO, 11 of the quo'in are composed of suitable metal, and which may be die-cast or otherwise made into blocks or plates ofsuitable thickness. The side members are provided at the lower portions of their inner faces with inclines 12 at the sides of longitudinal recesses in said members, and which flare away from each other, and against which inclined surfaces a wedge 13 is adapted to act.

The wedge 13 is provided with a screw- 1s a transverse section on theline 16.. The head leis adapted to turn upon the

sidemembers

10, 11, and for the purpose of turning 1t it is provided with a preferro HENRY: A.

threaded: opening for receiving a screw-j threaded stem .15 ofai screw having ahead ably hexagonal'socket 17, int0 which, -tl1e head of a suitable wrench may "be introduced.

Preferably, as shown, one of the side meme bcrs carries a pin 18, whiletheother side neniber carries a pin 19, said pins being prov ded with annular, shoulders or

flanges

18 ,19 respectively. When the side mem-- bars are pressed together or contracted, so

that the inner facesthereof'are in contact, .with the. Wedge'in itsflowermost, position,

the length of each pin 18., 19 is preferably equal to the combined widthsv of the side members. When each side member isprovided with a pin such as 1.8, 1 9,:the other side memberis providedwvith a socketfor bore 20, whichfis of just such diameter that the annular shoulder 'or flange onithe pin may. be guided snugly initssocketj The endsfof the pins opposite the annular sh0u'l-..

.ders or flanges. are driven with a-dr1vefit into suitable holesin the appropriate side member. Coiled. around the "pin '18, .and-

located inthe socket in the side member 11 is. axhelical expansion -spring 21, the ends of'whichbear respectively upon the bottom f the socket and against the annular shoul- 'der or flange. 18 A helical expansion} spring '22 is similarly arranged in the socket 20 of the side member 10. 5

' At the midlength of each ide' ember 10,

'11 there is a cavity 23,. which is preferably semi-circulanso as toconform,ito the ciI- cularity offthe head 16 of the adjustingscrew, the wider portions of these cavities meeting when th side members" 10, 111 are in contact at their inner faces.

When the side memberslO, 11 are in con tact the

cavities

23, 23 form a circular concavity, in; whichthe head 16 of the adjusting screw fits neatly, said cavities being of' such width transversely of the side members that the head 16 of the adjusting-screw may b as large as possible, and the width of the side members'when in contact, as narrow as possible. This furnishes an ample bearing" for the head of the screwnponthe side members and reduces the amount of metal necessary in the quoin. As the side members width of the cavities 23 in each of t'hern is made as wide as possible, so that the head 16 maybe as large as possible, it is desirable that theicavitiesbeopen at the outside ,sur-- faces. of the'side members, which may be 7 I done by providing open recesses 24 extending from the cavities through the said silr faces of the sid members.

This further more enables the side members to be made as narrow as possible, and the head of the screw as" large as" possible. Preferably, the

cavities '23, 23 are of such depth that the head of the screw will be countersunk their hen suitable wrench is inserted in the so i et" 17 in thehead of thescrew and turned in proper direct-ion, the quoin may be expanded-from its contracted position shown in Fig; 2 to its extreme expanded position shownV-in- Figd. During'this operation the wedge 13 is moved upwardly against'the inclined surfaces 12 12 of the side members,

and; the quoin is expanded. i VVhe'n the wrench introduced into thesocket 1'? is turned in reverse direction, the wedge itself does not act to contract the quoin' but the

springs

21, 22, which were contracted during expansion oft-he quoin, will themselves act automatically to contract the quoin' due to their expansion So that during the contraction of the quoin the guide means for the side members, assisted by the springs,

will acmaii commct the quoin, for then the adjusting sc'rew" will, be acting to position j the wedge downwardly;-

,In the preferred form shown, it is clear that the iwedge merely acts to expand'the one anytime other the wedge, -\x-.;

V V thequoin as a whole is exceedingly simplev the side members.

c'fi 'i'oin; while the springs merely act to con- "tract the quoin, both actions being dependent uponthe'tnrnin'g of the adjusting-screw so that and c mparatively.inexpensive; This action is made possible because the ends of the wedge do not interlock or i'ntere'ngage' with Itis obvious that the invention is s'usC'epti bleto modification withont' departing from the spirit and scope thereof, as defined in j the claims.

i W h at I claim new is:

1. In a printersquoin, the combination of lsidemembers having" inclined inner faces, 'whicli fiaretowards one side of the quoin, a

wedge bearing, on saidfaces and having a screw-threaded opening, a headed screw engaged opening, the side members having cavities at the opposite side of the quoin' in which the head of" the screw is countersunk, and said cavities being open to the two-remaining sides ofithe quoin, and

the screw-head being approximately the width of the side members when they are contracted, and guide means for the side members during their expansion and contraction. r p '2. In a printers quoin, the combination of side members having inclined inner faces,

which flaretow'ards thebottom of the quo'in, a wedge bearing on said faces and having a screw-threaded opening a headed screw engaged in said opening and the head bearing on the top of the quoi n' to merely expand it, guide means for the side members during their expansion and} contraction, and

expansion springs arrangedtoact on said guide means to merely force the side mem bers towards e ac'hother when the wedged-s released therefrom, the wedge and. theflside members being" free from interlock or interengagenient at the ends of the wedge.

- 35 In a printe'rs quoin, the combination of side members having longitudinal recesses, a

wedge bearing on the side walls of the rea screw-threaded opening, a headed screw engaged in said' opening, the side members having cavities at the opposite side of the quoin in which' the head of the screw is countersunk, and said cavities being open to the two remaining sides of the quoin and the screw-head being approximately the width of the side members when they are contracted, a g iide pir'i carried by each of said members, said guide-pins having abuts" qu'oi n tlie combination V ments located at opposite" sides of the quoin, 7

and each of the members having an enlarged open-ended socket for the abutments to move. 1n, and helical expansion springs around said pins, located in said sockets and seated on the closed ends of said sockets and onfsaid abutments in order to contract said members.

HARRY ii. HANGQGK