US1306249A - cobb and w - Google Patents

Description

D. L. COBB AND W. W. MOORE,

DUBBING MACHINE. APPLICATION FILED MAR. I. x915.

Patented June 10, 1919.

2 SHEETS-SHEET 1 D. L. COBB AND W. W. MOORE.

nusem MACHINE. APPLICATION FILED MAR-1, 1918- I V '1,306,%9. 4 Patented June 10, 1919.

2 SHEETS-SHEET 2 ms nos-ms PEICRS m. r-MDIL L/Tuo MA a TED sTATns PATENT or ina ion Dan L. coBB ANDWILLIAM w. MOORE, or omenmExAs. a

p Bs ne-MAor-imn To all whom 'it may concern: 1

Be'it known that we, DAN L. Goseand WILLIAM W. Moons, citizens of the "United States, residing at Orange, in the county of Orange and State'of TeXas,-ha-ve invented certain new" and useful Improvements'in Dubbing-Machines, and we do hereby declare the following to be a full, clear, and ex act description of the invention, such as will enableothers skilled'in the art to which it appertains to make and use thesame.

This: invention relates to dubbing machines, and the primary object of the invention isthe provision of an improved ma-' chine for dressing ship timber, sothat the same can be quickly and readily prepared. V

Another object of the invention is the provision of a portable machine carrying a motor and a rotatable cutter head for dressing any type of ship timber afterthe same has been'placed in positionto'build the framework of a ship.

A further object of the invention isthe" provision of a portable dressing "machine having a rotatable "cutterhead and supporting wheels for engaging a track secured to the sides of the timber to be dressed, the wheels and cutter head being adjustable, so that the machine can be -used forany size and type of timber. l V

:Astill further. object of the invention is to provide an improved machine of the above character, which is durable and eflicient in use, one that is simple and easy to manufacture, and one that can'be placed upon the market at a reasonable cost.

With these and other objects in view,'tho invention consists in the novel construction,

arrangement and formation of parts, aswill be hereinafter more specifically described, claimed, and illustrated in the accompanying drawings, forming a part thereof, in

I which:

Figural is a plan view of the improved dubbingmachine, I 1?? i Fig.2 is'a side elevation of the improved machine, showing the same in operative-pm sitionon a timber to be dressed,

Fig. 3 is a front elevation, partly in section, of the improved machine, showing the same in position on a timber to be dressed,

Fig. 4 is a side elevation of one ofthe adj-" 1 "justable wheels mounted on 1 the driving Specification o-Letters Patent.

line 6+6.

Referring to the drawings in detail,

through the improved cutter head on-the Patented June 10, 1919.

ApplicationiiledjMarch 1,1918. seria nb. 219,933.

wherein similar'reference numeralsdesignate corresponding parts throughout, the several vlews, the numeral 1 generally indicates the improved machine, and 2 the timher which is to bedressed. The improved machine 1 comprises aframe 3 formed of a palr of spaced longitudinally extending bars 1 held together against relative movement by brace irons 5, which extend laterally of the slde bars 4. Suitable cross beams may be positioned between the brace rods 5 an'd secured to the side bars 1 for holding the frame against all strains. The forward ends of the side bars 1 areprovided with enlarged bearings 6forrotatably receiving the shaft or spindle 7. Oneend of the shaft pro trudes outwardly through one of the side" bars 4:, a'nd is provided with a drivepulley 8. The rear end of the frame 2 is provided with a hanger '9 for receiving a motor 10 for driving the shaft 7 The cradle 9 consists of asupporting bar 11 extending parallel with the side bars and running from the rear brace rods 5 to the adjacent brace rods 5,

' and this bar 11 is connected with one ofthe sidebars 1 by supporting bars 12, which receive the base 13 of themotor. Any suitable type of motor may be employed for driving the shaft 7, and, as illustrated in the drawings, an'electric motor is rovided, and the armature shaft 14 thereo the side bars 4, while the same is journaled in a bearing 15 secured to a supporting block16 bolted, as at- 17 to the rear pory is extended outwardly'from the motor. towardone of tion of the side bar 4. The outer end of l the armature shaft 14 is provided with a drive pulley 16, and the pulley 16 is connected with the pulley 8 of the shaft 7 by means of a belt 17. i

The power for running the motor may be obtained from any suitable source, and a switch 18 is provided for controlling the operation of the same.

The shaft 7 is provided with a pair of diaand for engaging the-shaft,so as to lock the head-- in any desired position. The cutter head may be of any preferred form, and as shown' the same is substantially rectangular in cross section, and receives a pair of ,cutting or dubbing knives 22. Set screws 26f extend through slots 24 formed in the blades and into the head 20, and provide means for adjustably holding the blades in position.

Thus the blades can be adjusted inwardly or outwardly of the head, as desired. Slidably mounted on theshaft on each side of the cutter head 20 is a block 25, each of which carries a depending bracket 26, carrying a stub shaft 27, which rotatably supports a wheel 28. The block'is preferably formed of solid brass, and is provided with an aperture for rotatably receiving the bushing 29, which is provided with slots 30 for receiving the keys or ribs 19, and the bushing 29 revolves with the shaft. Suitable locking rings 31 are mounted on; each side of the block 25 on the bushing 29, and carry a locking set-screw 32, whereby the rings 31 can be held in position for rotation with the. bushing. These rings prevent independentmovement of the block 25 with relation to the bushing 29. A U-' shaped; yoke 33 has the terminals of its downwardly extending legs bolted, as at 34, to the upper surface of the block 25, and secured to the upper surface of the U-shaped members at the central portion thereof is a cross rod 35, which has its ends bent downwardly, as at 36, to receive the fastening element 37, which holds the same in position. By removing the brace rod 34 the blocks can be readily slid on the shaft 7 to bring the wheels 28 toward or away from each other, and different size brace rods 35 are provided so that the wheels can be held in any desired position with relation to each other. Suitable rearwardly extending braces 38 are formed onthe lower ends of the depending brackets 26. These brace rods extend upwardly and rearwardly from the brackets to a transversely extending rod 39, which slidably supports the same. The rod 39 has its ends secured to the side bars 4. The ends of the wheel brace rods 38 are enlarged, as at 40,, and are apertured, so that the same may be slidably mounted on therods. Bearings 41 are secured to the surface of the side bars 4 adjacent the rear ends thereof, and these bearingsv support a shaft 42, which. extends transversely of the frame. This shaft receives a relatively long roller 43, and the same is positioned in a plane above the wheels 28.

l In operation of the improved machine the rails 44. are temporarily secured by any suitable fastening elements to the sides of the timber 2, which is to be addressed, and the wheels 28 are adjusted in the manner described above, so as to engage the'sides of the timber and the rails 44. The wheels 28 engaging thesides of the timber prevent relative or lateral movement of the machine on the timber and hold the same in its course. The relatively long roller 43 engages the top surface of the timber being 7 dressed and forms asupport for the rear end of the frame. The cutter head 20 is adjusted 011 the shaft 7 in the above .des crib ed mans ner, and the switchis then operated, so that l the motor 10 is started. The machine is then drawn over the timberto be dressed. It can be seen thatthe motor 10v can 'eith erbe of the ofthe timber dressed, until the r i cured to either the front or "rear end of the machine, and these handles form. means whereby the machine can be guided and drawn over thework.

While the machine has been ShOWIl 0n rec tangulartimber, it is to be understood that the same can be used for dI'GSS1I1g' 13011I1Cl,L0C,- tagon, square or othershaped timber, and can be used for inside and outside work on frames ofa ship, or for both vertical and horizontal timbers.

- From the foregoing descriptiomtaken in connection with the. drawings, it canbeseen that an improved machine is provided, which is especially adapted for dubbing or dressing the vertical and horizontal inside and outside frames of wooden ships, beveling planks, working around timbers, octagon or square, and efliciently done. 7 V In practice, we have found that, the forn of our invention illustrated the accom panying drawings and referredto inthe above. description, as he preferred embodi ment, is the most eflicient andpractical; yet

and one which will quickly do the work which is to realizing the conditions concurrent withlthei; adoptionof our device will necessarily vary,-

we desire to emphasize that changes in details of construction, proper? tion and arrangementof partsmay be resorted to, when required without sacrifii ii ng y of h dv n ages, of our invention-as setforth. r r Having thusdescribed our invention what we claim as new,.is:

rious 11 2 1 A p a le. dubbing machine comprising a frame, a rotatableshaft carried bythe'for ward portion of the frame and positioned below the same, a cutter head keyed to the shaft,amotor for operating the shaft, blocks In testimony whereof we affix our signarrllounted on each side of the cutter head and tures in presence of two Witnesses.

s idably mounted on the shaft a bushing rotatably carried by the blocks and keyed to DAN COBB the shaft, a depending bracket formed on the WILLIAM MOORE blocks, rollers rotatably carried by the Witnesses: bracket, and means for holding the blocks in WILLIAM O. ALLsUP, spaced relation to each other. ED. S. MCCARVER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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