US2158444A - General utility tool - Google Patents

Description

y 1939- J. A. WARDLE 2,158,444

GENERAL UTILITY TOOL Fi'led Jan. 29, 1936 mtoMw g Patented May 16, 1939 UNITED STATES PATET FFEQE 2 Claims.

My invention relates to utility tools and has for its object to provide a tool which has many uses but which tool consists of a main unit and many supplementary tools and attachments therefor which are to all be used with the main unit.

A further object is to provide a utility tool comprising a motor, driving a set of co-acting opposed gears, which may be either or both used to drive or actuate different tools, such as shoe shining and polishing pads, mixing tools, small circular saws, sanding disks, reciprocating saws, knives, and like tools, and any other small type of reciprocating tool.

These objects I accomplish with the device i1- lustrated in the accompanying drawing in which similar numerals and letters of reference indicate like parts throughout the several views and as described in the specification forming a part of this application and pointed out in the appended claims.

In the drawing in which I have shown my device,

Figure 1 is a side elevation of the main power unit of my device.

Figure 2 is an edge view of Figure 1.

Figure 3 is a side view of the device with the gear housing removed.

Figure 4 is a rear view of the small circular saw used with the power unit.

Figure 5 is an edge view of Figure 4.

Figure 6 is a rear view of one of the emery wheels used with the device for polishing or grinding.

Figure '7 is an edge View of Figure 6.

Figure 8 is a rear view of a sanding disk.

Figure 9 is an edge view of Figure 8.

Figure 10 is an end view of the removable gear housing.

Figure 11 is a plan view of the gear housing.

Figure 12 is a View of a portion of the head of the power unit showing double trimming rotary cutters for shearing or like purposes.

Figure 13 is a sectional view of the two outer 46 cutters removed from the machine.

Figure 14 is a section of one of the inner cutters.

Figure 15 is a section of the other cutter.

Figure 16 is an end view of Figure 12.

In the drawing I have shown my motor utility tool as A, having a motor B formed in a suitable closed cylindrical casing at one end of the tool and extending out from one closed end of the cylindrical casing is a casing 2, surrounding the 65 extended drive shaft of the motor, (not shown).

The end of this shaft casing 2 is formed into a gear housing 3 made by extending two sides 5 and 6 in semi-circular form at the end of the casing and then providing this with a removable semi-cylindrical casing '1. This casing has one end closed at 8 and the other end is open to allow it to be slid over the sides 5 and 6. In the housing 3, I then mount a bevel pinion I0 meshing with a bevel gear H, which gear II is carried on a hollow transverse shaft l2. This shaft is carried medially through the sides 5 and 5 and the sides are formed with suitable hearings to hold the shaft in proper alignment with the pinion and gear in constant meshing position. The ends l3 and M of the shaft l2 extend beyond the sides 5 and 6 sufficient distance to allow the many difierent tools and attachments to be carried thereon. These two ends l3 and I4 are slotted at l5 to allow the proper compression of the shaft for frictional engagement with the different tools and attachments and to fit the cross plate which is formed in the sockets formed on these tools.

The saw D in Figure 4 is made with a socket l'l formed on the back side thereof, said socket to fit onto either stub shaft 13 or 14 with a cross plate l8 formed diametrically across the socket to fit into the slot l5 of the stub shafts. This saw may be used for any desired purpose.

In Figure 6 a small size grinding stone E is shown having a socket l9 formed on one side with a like plate 20 thereacross. This also may be used on either of the stub shafts l3 or l4.

In Figure 8 I have shown a sanding disk F having sand paper 22 secured to the engaging face and having a socket 23 formed on the back side of this disk by which it may be secured to the stub shafts l3 and M.

In Figure 12, the device is made to provide cutt'ers, one stationary, and the other to rotate, with the stationary cutter carried on a cross shaft 68 which cross shaft extends through the core opening of the cross shaft l2 of the tool A. A holding bracket 69 is secured to the casing 2 and carries a lug 10 in the end thereof to fit into the socket 1| in the end of the shaft 68, thus holding the shaft and two guard cutters l2 and 12a from rotation and the two rotating cutters I3 and 14 are provided with hubs 15 on the inner side of each to fit onto the stub shafts l3 and M of the shaft I2, thus the two inner cutters rotate and the outer cutters stand still and the teeth of the inner cutters cut off any material passed through the stationary guard cutters.

Having thus described my invention, I desire to secure by Letters Patent and claim:

1. In a utility tool, the combination of a motor; a drive shaft extending therefrom; a housing around said shaft; an enclosed gear housing at the end of said shaft housing; a pinion gear mounted on the end of said shaft; a hollow cross shaft mounted across the gear housing at right angles to the motor shaft with each end extended beyond the housing to receive a tool from either or both sides; a bevel gear mounted on said cross shaft meshing with the pinion gear of the drive shaft to impart motion to the cross shaft; slots through the extended ends of the shaft, a tool having a hollow hub formed on one side thereof; a plate formed diametrically across said hollow hub from inner side to inner side, said plate to engage within the slots in the extended ends of the cross shaft with the hollow hub encircling the extended ends to firmly engage the tool to the shaft.

2. In a portable small hand operated tool of the class described, the combination of a small diametered motor mounted with the drive shaft extending through a housing extending from one end of said motor; a gear casing on the end of said housing; a hollow cross shaft through said gear casing extending beyond each end of said housing; cross shaft from the motor shaft; a stationary shaft through the hollow cross shaft carrying a toothed cutter guard on each end thereof; means to lock said stationary shaft by one end to said shaft housing; and rotary toothed cutter blades mounted to rotate with said cross shaft against said stationary cutter guards.

JOHN A. WARDLE.

gears to transmit rotary motion to said

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