US2663336A

US2663336A - Attachment for the handle of driven tool-equipped flexible shafts

Info

Publication number: US2663336A
Application number: US191540A
Authority: US
Inventors: Paul A Sigvathsen
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-10-23
Filing date: 1950-10-23
Publication date: 1953-12-22
Anticipated expiration: 1970-12-22

Description

Dec. 22, 1953 2,663,336

P. A. SIGVATHSEN ATTACHMENT FOR THE HANDLE OF DRIVEN TOOL-EQUIPPED FLEXIBLE SHAFTS "Filed Oct. 25, 1950 /0 44 3 4 INENT0R.4

, Pazz/ 5l lsfiia/hsen "My'inv'ention relates to improvements-in driven handle-equipped flexible shafts for operating various'difierent "kinds of tools in which the specific toolis manually held to its work.-

3 The principal object of this invention is tc-provide a novel attachment applicable to the handle of a driven flexible shaft that is manuallymoved to feed a tool operated thereby to its'work.

-"A further object of this invention is to provide such an attachment for positively guiding-a tool to its worka's said attachment is manually moved.

- Other objects of this invention will be apparent from the "following description, reference being had to thedrawin'g'.

Whilethe attachment is intended for general use, in connection with a driven flexible shaft holding a toolfor a specific use, it is especially well adapted for manually moving and mechanically guiding a tool designed. to'remove, by cutting,

old putty"fror'n*"a windcwisash in preparing the same for-reglazing. W -'-Io the-above end, generally stated, the. invention consistsof the novel devicesand combination of devices hereinafter described and defined in the claim's. V r w In the accompanying drawing, which illustrates the invention, like characters indicate like parts throughout the several views.

Referring to the drawing:

Fig. 1 is an elevational View of an electric motordriven flexible shaft, to the handle of which the attachment is applied, a portion of the flexible shaft being broken away;

Fig. 2 is a view of the attachment removed from the handle of the flexible shaft, partly in plan and partly in horizontal section taken on the line 2--2 of Fig. 1;

Fig. 3 is a front end elevational View of the attachment, as shown in Fig. 2; and

Fig. 4 is a fragmentary detail view partly in plan and partly in section taken on the line 44 of Fig. 1.

The numeral 5 indicates an electric motor on a mount 6 having an upstanding apertured ear I for hanging said mount from a support, not shown.

A flexible shaft 8 in a casing 8 is attached at one end to the armature shaft 8* of the motor 5 by a coupling 8. On the outer end of the flexible shaft 8 is a clutch 9 that holds a tool 10. A long sleeve-like handle II is turnably mounted on a sleeve bearing I on the outer end portion of the casing 8 The tool In has spiral cutting edges l2 that extend longitudinally relative to the axis of said tool and is designed for cutting old putty to ATTACHMENT'IFOR ,THE H N LE o1 DRIVEN 7 1 ,Trimi;saatangMstaaisiMimi; i A Application October-'23, 1959f, serial-N 191,540-

loiaiihsl (01; 144 134) 2 remove the same from a sash. The parts thus far described are-conventional except the tool It.

Referring now in detail to the invention, wherein the numeral It indicates a base having parallel sides and a smooth bottom adaptingthe attachment to slidably rest on a piece of work such as a window sash: A handle M extends above and longitudinally of the "baseand is integral therewith; The base l3 has at its front end an up standing member it that projects above the handle i i. "The outer face of the base member 55, at its upper end portion, is flat, slightly outset, as indicated at it, perpendicular to the bottom of the base l3 and extends at a right angle to the sides of said base. A hole I! extends through the base member |5 from front to rear and its axis is parallel to the bottom of the base it and perpendicular to the surface it. s r

Ahead l8 has flat contact with the surface 3 on 'thebase extension 55 and is provided with a fixed screw stud i9 that extends through the hole ll and'supports'the head |8 to turn about a horizontal' axis, A wing-nut 2% is applied to the screw stud |9,impinges the back of the base extension l5 and frictionally clamps the head i8 onto said extension. In the front of the head it? is a long semi-circular seat 2|, the axis ofwhichis perpendicular to the bottom of the base It when said 'head is positioned as shown in the drawing. A

similar seat 22 is formed in the right-hand side of the head It and a like seat 23 is formed in the left-hand side of said head. Hinge lugs 2d are formed in the head I8 between the two seats 2| and 22 and similar lugs 25 are formed in the head |8 rearwardly of the seat 23. A pair of vertically spaced notches 26 are formed in the head It between the two seats 2| and 23 and a screw stud 21 having at one end an eye 28 extends into each notch 26 and is secured to the head i3 by a pin 29 that extends through aligned holes in the head I 8 and the eyes 28. Formed in the head I8, rearwardly of the seat 22, is a pair of vertically spaced notches 30. A screw stud 3|, having at one end an eye 32, extends into each notch 3t and is secured to the head |8 by a pin 33 that extends through aligned holes in said head and the eyes in the screw studs 3 I.

While the seats 2|, 22 and 23 are shown perpendicular to the bottom of the base 3, they may be positioned obliquely to said bottom by turning the head I8 about the axis of the screw stud 9.

As shown, the attachment is secured to the handle M by placing said handle in the seat 2| and rigidly holding the same therein by a semi-circular clamping band 34 of substantially the same length as the seats 2 I, 22 and 23. This clamping band 34 has on one of its longitudinal edges open hinge lugs 35 which fit between the hinge lugs 24 and are removably attached thereto by a fixed hinge pin 36. On the other longitudinal edge of the clamping band 34 is a flange 31 having therein a pair of notches 38 through which the screw studs 21 project. Spacing sleeves 39 and wingnuts Mi are applied to the screw studs 21 and lock the clamping band 34 to the head it.

To mount the handle Hi in the seat 22, the clamping band 3% is removed from the hinge pin 36, turned end for end and again interlocked with said hinge pin. In this position of the; clamping band 35-, it is secured to the head it by the screw studs 3|.

To mount the handle is, in the seat, 23;, the:

clamping band St is removed from the hinge pin 33, again turned end for end and held interlocked with the hinge lugs by a fixed hinge pin 4i and secured by the screw studs 2? to the head [8.

The various seats 2 i, and 2% permit different lateral adjustments of the tool it relative to the base !3. The tool may be raised or lowered by vertically adjusting the handle H in the respective seats 2 l 222 and 23.

A pair of guides 42 for the base it is provided. Each guide 52 is in the form of a rod #23, one end. portion being bent laterally a sleeve-lii:e collar 4 t mounted thereon. These rods extend through transverse holes in the base 13 near each end portion thereof. rod :3 is held where adjusted relative to the base 53 by a set screw 45.

Obviously, the guides 62 may be endwise adjusted or turned to swing the rollers at about the axis of the rods 2-3, to position said rollers for engagement with an object to guide the same. With the rollers $4 in contact with an object to guide the base l3, the attachment may be manually slid onthe object on which it rests to feed the tool it to its work.

The drawing illustrates a commercial form of the invention, but it will be understood that the same is capable of certain modifications as to details of construction, arrangement and combination of parts within the scope or" the invention herein disclosed.

What I claim is:

l. A tool for removing old putty from a window sash including a handle-equipped rectangular elongated base having a smooth flat bottom, means mounted on the base at one end thereof for vertical adjustment and having a driven member for holding a tool, and a round tool of a constant diameter held by the driven member with its longitudinal axis perpendicular to the bottom of the base, said tool having a spiral cutting edge, thelower end of the tool being flat and perpendicular to said axis.

2. The structure defined in claim 1, further including an independent guide at each end portion of the base, each guide including a long red extending endwise through a transverse hole in the base, one end portion of each rod being bent laterally and having mounted thereon a sleeve-like member, and means for holding each rod where endwise adjusted relative to the base.

'3.' A base member having an elongated, rectangular fiat bottom and a handle by means of which said base member may be slidably moved directly on apiece of work, saidbase member also having, at one end, an upright extension provided with an outer face that is perpendicular to the bottom or" the base member, spaced thereabove and outwardly offset from. end of the base member, an outwardly projecting head attached to said outer face, said head having clampin means for holding the sleeve-litre handle of a tool having a driven cutter extending below the last noted handle, a pair of laterally spaced guides for the base member, each including a rod extending enclwise through a transverse hole in the base member, one end portion of each rod being turned downwardly, and means holding the rod in endwise adjustment.

PAUL A. SIGVATHSEN.

7 References Cited in the file of this patent UNITED STATES. PATENTS Number Name Date 768,366 Hughes Aug. 23, 1904. 1,321,240 Oliva et a1 Nov. 11, 1919 1,495,796 Potter May 27, 192a 1,958,203 Pfau May 8, 1934 2,255,541 Dremel Sept. 9 194:1