US716A

US716A - Henry barnes

Info

Publication number: US716A
Authority: US
Publication date: 1838-04-28
Anticipated expiration: 1855-04-28

Description

f lows,.`reference being had to the annexedy io.

HENRY BARNES, 0F MUNS0N TOWN SHIP,.OHI1E0. p Y

MACHINE. FOR Marxisme AND TENGNLNGTIMBER, sw.

l speification of Letters ratent no.k 11.6 dated apen 28,. 183s..

Tod/.ZZ whom it may conc-em Be it known that` 1,. HENRY BARNES, of

Munson township.Geauga county,` State of Ohio, have invented a new and useful Improvement inMachines for Mortising and Tenoning Timber.- which is described as fol-` drawings of the same making part of this specification. A

. fThis machineconsists of a suitable frame, marked A, Figure l, in the annexed drawcontain and. support the parts hereafterdescribed. As the framel may be varied in size andproportion, according to.` the` purpose intended, it need not be more ,particularly described.. In the center ofthe frame, on top, use two perpendicular' cheeks B, B, one on each side, of proper size and strength, mortised and tenoned into the caps of the frame, between which the cutting tools work up andV down.. i y

On top ofthe frame are two pairs of parallel ways C7V C, C, C, over which two carriages Dz. D move-one containing the timber to be mort-ised and the other the timber to be tenoned. Y

The carriage D for the timber to be mortised is composed' of three parallel timbers placed at suchv distances. apart unitedv by crossftimbers, as to form two parallel channels the whole length `of the carriage; in I which channels the clamp bolts E are placed that secure the rests F to' the carriageeach of said rests being` turned at right angles at. the bottom and perforated with l y attache-d moves vertically in grooves formed by two parallel vertical plates g g fastened an oblong slot in which the clamp bolt moves to allow the rests to be moved to the right or left and clamped; at any' place required. The top of each rest is bent in like manner at right angles and perforated with a similar oblong slot, in which is placed aclamp bolt that secures a longitudinal bar H on top of said rests, which may be moved to the right or left and clamped at any position desired. To this baris secured the piece of timber to be mortised by means of clamps I moving on said bar and set at any desired point by thumb screws J. In the other channel of this carriage are placed clamp bolts passing'through guides K which are movable longitudinally for holding the timber against the bar. On one side of the carriage is a rack L Fig. 6 into which works a pinion M on a horizontal shaft N lying across the frame `having on its outerend a said shaft-its extremities being embraced by staples inserted into the faceof said pulley. band R passing from this pulley to a. small pulley S on: the crank shaft T.

The other'carriage D for holding thetimber to.Y be tenoned is made in a similar manner to that above described for mortising7 eX- V cept that itis not as long.V ings Fig.- 1,I of suitable sizeA and strength to g The' cutting tools arearranged and i grooved pulley O attached to the shaft N byj` a spring P passingat right angles through Vwork .in the following mannen-At the head of the cheeks, and turning in boxes, is a crank shaft T turned by means of a treadle U at 'l0` the bottom ofthe frame connected with the crank V on4 the end of saidv shaft by a pitrnan` rod WV at the side of the frame. To one of the cranks of this crank shaft is attached s a shackle-bar X to which is attached a vertil cally moving slide Y Figs. l and 7 having onits face projections Z perforated with roundf apertures` through which passes a round stem on shaft Figs. l and 2 whose lower end is enlarged:a or formed into a head b in which is formed a socket to admit the shank of the cutting.. tool e Whichis secured therein by a small thumb screw d. The stem 1s held up by a lever e insertedinto it near its upper end resting upon the en d of a :notched plate f Figs. l and 7 inone of the project-ions of the sliding plate-.Said lever serving to` turn the stem orshaft around so as/to reverse the position of the cutting tool or chisel.` 4

The slide to which the cutting tool is to two horizontal plates 71.V t attached to two horizontal bars v1 t formed between the cheeks, by means of clamp boltsc 7c` placed in oblong slots in said horizontal 4plates so that they can be moved to the right or left as desired so as to shift the position of the cutting tool as required.

The tool c for mortising is similar to a common chisel-See' Fig. 2. On the end of the crank shaft is afly wheel l.` To one of the cheeks and one ofthe cross timbers is fastened a frame m through which passes a pin fn, for holding down the timber to be the only thing` changed is the cutting tooll g 4 which is similar to that represented at Fig. 3.

The pinions lvl are thrown outrof gear with Vthe racks L by means of a wedge 1 Figs. l and t forced between the pulley on the end of the pinion shaft and the outside of the frame-said wedge being fas- `tened on the end of a lever s extending across the frame, turning on a bar or pins as its fulcrum placed about the center Vof the frame.

Below the tenoning tool and fastened to the frame is a stop t Figs. 3 and 8 to prev vent the tenoning carriage running toopfar the fly wheel e regulating the motion-at' `the same time the carriage D is advanced with the stuff to be mo-rtised by means of the band R passing around a pulley, S on the crank shaft leading to the pulley O on the pinion shaft N which it turns with the pinions lvl and one of these meshing into the rack of the carriage D causes it to advance. The cutting tool may begin its work at either end of the intended mortise; but when it commences toV cut at the end farthest from the cutting toolthe lever e in the stern or shaft a mustbe turned to the right and when it begins at the other end the positio-n of the lever must be changed to the left which reverses the position of the edge o-f the cutting tool. The motion ofthe carriage being arrested for a few moments by the enteringv of the cutting tool linto the stuff fastened thereon andthe band around the pulleys remaining tight it becomes necessary to have the pulley O 'on the pinion shaft to soon as the cutting tool rises, when thecar-Y riage again advances. As soon as the morscribed.

tise is c'utthe required length'the motion of the machine is stopped. Y ,Y

The end of the lever s towardy the treadle is depressedwhich raises thefother end with the wedge?a thereon, forcing said' wedge between the 'pulley and frame causing the pulley vto 'recede from the frame 'and draw with it the pinion shaft and pinions-the y latter being thrown out of gear with the racks. The carriage is' then drawn 'back by hand. The pinions are again put in gear long for the play of the boltto which the bar H is attached. VSee Fig. 5.

ln order to cut a tenon the stuff must be secured to the otherxcarriage D,-theY slide Y and shackle bar X shifted to the crank w over said carriage andthe mortising tool removed and one adapted for .cutting the tenon such as F ig. 3 secured in its place.

soV

The operation will be siinilarto that above described for cutting the mortise. t

lV hat I claim as my invention and which .l vdesire to secure by Letters Patent consists l. In the construction of the carriages with the rests, bar, clamps, and clampybolts-as before described.

2. The arrangementl of the lever and wedge for lthrowing the pinions out of gear with the racks as before described.

rl`he method of connecting the pulley with the pinion-shaft by the spring for allowing the pulley to turn onthe shaft as the cutting toolA enters the wood as before de- HENRY BARNES.

Witnesses: P. ELLIOT,

EDMUND MAHER.-