US548517A

US548517A - callooh

Info

Publication number: US548517A
Authority: US
Publication date: 1895-10-22
Anticipated expiration: 1912-10-22

Description

(No Model.) v 3 Sheets-Sheet l. C. B. CALLOGH & H. C. DELOROIX.

WOODWORKING MACHINERY.

3 Sheets-Sheet 2.

c. E. GALLOCH su 11. o. DBLCROIX. WODWORKING` MACHINERY.

(No Model.)

AN DREW H'VGIAKMJHGTDUTHaWASHI NGTDOLDL (No Model.)

FIG.3

JTI Vela/ls."

AK Dm SSWA. "UNH-mm. VQMNIKGYON. D C

3o ing-shaft 7.

4o forward motion.

o less removed from the pivots 15.

UNITED STATES PATENT CEErcE.

CHARLES EMILE CALLOCH AND HENRI CHARLES DELCROIX, OF LA FLECHE, FRANCE.

WOODWORKING MACHINERY.

SPECIFICATION forming part of Letters Patent No. 548,517, dated October 22, 1895.

Application filed January 8, 1895.

5 inthe Department of the Sarthe, France, have invented a newr and useful Improvement in W'oodworking Machinery, of which the following is a specification.

This invention consists of an improved arro rangement of a compound saw-machine comprisin g a series of reciprocating blades oper ating with compressed air, its object being to saw uncleft timber.

One form of the improved machine is rept5 resented, by way of example, in the accompanying drawings, in whichn Figure 1 is a side elevation of the machine. Fig` 2 is a front view thereof, and Fig. 3 is a side elevation of the machine-frame and of zo the bevel-gearing.

The machine consists of a guiding-frame 1, within which is fitted another frame 2 carrying the saw-blades. The frame 2 is operated by two connecting rods or links 3 also 2 5 arranged within the guide-frame, and one end of which is connected to the top cross-beam e of the frame 2, while the other end is linked to the trunnions or journals 5 of the flywheels 6, mounted on each end ot the driv- The driving-shaft 7 is secured to the legs of the supporting-frame in some machines, while in others it is mounted upon a bed-plate to which the supporting-frame legs or standards are bolted. A driving-pulley 8,

consisting of two parts and strengthened or stifened so as to balance the frame 2, is placed onto the central portion of the driving-shaft 7.

The machine carries four feeding cylinders or rollers 9 9 and 10 10, Fig. 2, which receive The motion is transmitted to the two lower rollers 9 9 by means of a link 11, arranged on one side of the machine in such a manner that whenever the machine completes one revolution motion is imparted 4 5 to the gearing 12 12, which operates the two lower rollers 9 9, thereby causing such rollers to perform a movement or stroke of greater or less extent, according as the slide 13, Fig. 1, to which is jointed the link 14, is more or The lower rollers 9 E) at the same time convey motion to Serial No. 534.242. (No model.)

the two upper rollers 10 10 by means of two vertical shafts 16 16, Fig. 3, arranged on one side of the machine and connecting the upper rollers with the lower rollers by means of beveled gearing. These two rollers may be lowered or raised at will, according to the diameter of the timber to be sawed, by means of two hand-wheels 17, fitted with a treble gearing, whereon are secured two weighted levers 18, which. may be shifted as required, so that they remain in the horizontal position and exercise snfticient pressure upon the rollers or cylinders to move along the timber. The timber is also supported by two carriages 19, provided with hooks, one of which carriages is situated behind and the other in front of the machine, rails being provided for them to travel on.

The' machine is surmounted by a compressed-air cylinder 20, and having its pistonrod 2l connected to the frame 2. The piston reciprocatin g in such cylinder has for its object to take up or deaden the concussion and vibration resulting from the reciprocating motion of the blade-carrying trarne and to enable the machine to revolve at a very high rate of speed without any such vibration or concussion. At each revolution of the machine the piston compresses air within both cylinder ends, the yielding resistance of the motor fluid serving to check the impact ot' the frame as it arrives at the dead-point, and thus assisting it in recovering the same rate ot speed as before by expansion after it has moved past the said dead-point.

0n the left side of the cylinder 2O there is provided a large tap or cock 22, connecting the two ends of the said cylinder and intended to be used when the mechanism is beginning to operate. This tap should be turned on while the machine is being set in operation and closed as soon as the machine is fairly started. Upon the right side there are provided screws 23, which serve to adj ust or control the pressure of the compressedair necessary for the noiseless operation of the machine. A separate pressure-gage is provided at each cylinder end, so as to indicate the prevailing pressure of the compressed air on either side and to enable it to be ascertained whether or not the pressure keeps equal as ICG the piston travels backward and forward. The number of atmospheres of pressure requisite for the satisfactory operation of the machine depends upon the weight of the bladecarrying frame, the number of saw-blades tted therein, and the number of revolutions which it is desired that the machine should perform. The heavier the blade carrying frame, and the greater the desired number of revolutions, the more the pressure of the compressed air should be increased. This result is attained by closing as many of the air-inlets as may be necessary to insure the silent operation ot' the machine. To reduce an abnormally-high rate of speed a safety-valve 24, placed upon the cylinder and communicating with both its ends, is used to restrain the pressure and to obviate a possible explosion in the cylinder, the fact that the rate of speed has become too high being notied by the noisy operation of the machine the moment the said valve is raised from its seat.

In the machine represented in the accompanying,r drawings thelegs of the supportingframe rest upon amasonry bed direct; but in order to facilitate the iitting and enable any operative (skilled or otherwise) to readily fit up the machine the legs ef the frame may be adapted to be secured to a metal bed-plate ot' predetermined size and shape and provided with suitable perforations.

Having now particularly described and ascertained the nature of our said invention and in what manner the same is to be performed, We declare that what We claim is- In a Wood-Working machine, the combination with a saw-carrying frame, of a shaft and crank connected to said frame by a pitman, an air-compression cylinder closed at both ends and having its piston connected to the frame, and a safety-valve having communication With both .ends of said cylinder, the latter being provided with a series of screws placed in air outlets arranged at points equally removed from both ends of the cylinder, to regulate the escape ot air and the volum'e thereof which is compressed at each stroke of the piston, substantially as described,

In testimony whereof We have signed this specification in the presence of two subscribing witnesses.

CHARLES EMILE CALLOCH. HENRI CHARLES DELCROIX. Witnesses:

CLYDE SHROPSHIRE, W. YONE.