US77958A - chase - Google Patents

Description

geter musicanti ifm.

Leaelelaatem N0.- 77,95 8, dated Magie, '136s IMPROVEMBNTSIN ecommerce. Bevetmrefnicnms;

TQ ALL WHOM IT MAY CONCERN;

Be it known tbnt- I,'WLLIAM 1?.' C'HASE, of the city of Boston, in the county of Suolk, :ind Stateof Massachusetts, have inuentedcertain new :mdusetul Improvcmentsin Muehn'esffo-rv Bevelling -B'o'okbiudcrs Boards, nndsmilar articles and I do hereby declare the following to be a full, clear, and exact description oi' the same, reference being made to the drawings accoinpenyingi'tbs s {pecification, and the iigures-nnd letters of reference thereon. .I 'l i u l i Figure 1 of the said drawings is a view in perspective of the 1:1 1a.chine'. Figure 2 isa top' view. z Figure 3, a vertical' sectional view of the saine, tnlienthroughthe line a: az. Figure-4 is. h. perspective view of the plhne. Y Y Figure 5 is un under side view of the sume, und Figure 6 is .u sectional view of the latter, throu'ghthe liney y".. Similar letters of reference indicate like parts in the several drawings.V

My invention vconsists,first, in Vthe employment of a. reciprocating pl ane, provided lwith an oblique c utte r, inv combinationwith anoblique groove to guide the plane' in its truvel,wdier'eby I anx enabled to. o btein` a. smooth sheer-cut of the bookb'oardor otberiuterial; second, in the combinution of the"adjustablc plates,V for holding the vrn:iterialfmrthe. action of the cutter, with the oblique groove und tbereciproeating cutter;

third, in the combinationfwith the oblique groove and vrecp'roczitin.g cutter, of the adjustable bed-plate, for

giving any desired bevel tothe edgeof the material fourth, in lnaking the face of"- the plane concave, in lcorribination with en oblique cutter; -l `t h, in thecombinationn'd arrangement of the obliquegroove, the Vreiproeating. oblique cutter, andthe adjusting and holdingsplatesfull V o i' which will be fully set forth.

To enable otliersslcilled in the art (to'make and use my in vention, 'I will describe its construction and-mode of operation. i .l

The side pieces A A,which support the bed of the machine, are. mede with two cnrs, (JL-by which the 'machinecan be secured to a bench or table', and with two 1ugs,.'c, provided with .holes for the sqt-screws E E. The adjustable plates B B :ire 4attached to the side pieces, ill-'an inclined position `the lower Vplate being stzitienhry,and tbupper one adjustable, so thatthe aperture between them .th rough which the materialprojects, may be adjus-tedto different thicknesses of board. 0n' these filetes, and at 4:ingle with the space between 'them ,lare vplaced'the guides C C, which govern the/ movements of the plane H'.

The bed-plaiteD, on which the material is laid', is placed beneath the `plaites `Brand is capable of beingA adjusted utanydesired angle', by means of the screws FF, passing through the slots a a, in the-pieces A, :ind workingli holes in the project-ions@ on the underside ofthe plate.. I u i llbe plane H is mede of the. desired shape, with' its face or under surface concave, to Vprevent brasiqn of th'e material, and its cutting-ironie' sopleced atan angle with tdiaperturej-between the platesB'B, that n sliding cr shearcutis 'inade by the plane. v

The mechine is operated s follows: The space between the plates B B isadjusted toallow'the material to,project above theins'urfuce, byymovingthe upper plate to mj awy f rom the lower ,'plate'the necessary dis'- I tanee,' and retaining .it in'fpleec by turning `the sctfscrcws and the bed-plcteDis' adjusted to` the anglefit is desired to give the bevel on the edge ofthe material. u .l

The book-cover or otherarticle being placed and held in position on the' bedf'plate, c clean and even bevel,l of its edge is-obtaincd by reciprocating theplane in itsvgroove alarme I claiml 1f The reciprocating plane, provided with an oblique cutter, in combinationywith'tlle oblique groove, `to

guide the plane in its travel, whereby I qm enabledto oh'ttin a smooth shear-cut of the material, substantially as set forth and specified. i

2. The comhination, with the oblique groove and reciprocating cutter, of the adjustable ploteB, for holdintgr the materia'lkfor the action of the cutter, substantially :is set forth and specified. v

3. The combination', with the oblique groove and reeifnoeating cutter H, of the adjustable bed D, for givingvany desired bevel to the material, substantially. as set forth` and specified.

'4. Making the face of the cutter or plane H concave, in combination with the oblique cutting-iron I, whereby I obtain n clenn,-smooth cut, without abrnding the material7 substantially as specified. l

5. Thef'combination and arrangement of the oblique guides C C, the reciprocating plane II, holding-plates B Bfaind adjusting-,plate D, constructed and operating substantially :is set forth :md specified'.

WILLIAM l?. CHASE.

Witnesses: l

WILLIAM HENRY KERKHOFF, WILLMM EDWARD SAWYER.

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