US2161040A - Device for removing putty from window sashes - Google Patents

Description

June 6, 1939. L. E. HARMON, JR 2,161,040

DEVICE FOR REMOVING PUTTY FROM WINDOW SASHES Filed Jan. 6, 1937 INVENTOR BY 0 WW ATTORNEYS Patented June 6, 1939 UNITED STATES FATENT OFFICE DEVICE FOR. REMOVING PUTTY FROM WIN- DOW SASHES 8 Claims.

This invention relates to an apparatus for removing putty from window sashes and like supports upon which the glass panes have been secured by means of putty.

; It is well known that the removal of old putty preparatory to replacing panesof glass which havebeen broken is difficult due to the putty having become dry and hard and also dangerous on account of the liability of the hands slipping against the broken glass while using ordinary tools for this purpose.

The object of this invention is to provide a simple and efiicient apparatus whereby old, hard and dry putty may be removed from window sashes and the like in order to permit of reglazing the same and which can be operated easily and conveniently and permit the putty to be removed expeditiously with safety to the operator.

In the accompanying drawing:

0 Fig. 1 is a top plan view of a putty remover embodying a satisfactory form of my invention.

Fig. 2 is an end elevation of the same.

Fig. 3 is a vertical transverse section, on an enlarged scale, taken on line 3-3, Fig. 1 and 5 showing the apparatus applied to a window sash for removing putty from a bar thereof and the glass pane mounted thereon.

Figs. 4 and 5 are horizontal sections taken on the correspondingly numbered lines in Fig. 3.

30 Fig. 6 is a fragmentary vertical section showing a form of rotary cutter or routing tool which may be used as part of the apparatus for removing putty from a groove in a horizontal bar or rail of a window sash which receives the edge of a 3'5 pane.

Fig. 7 is a horizontal section taken online '|-1, Fig. 6.

In the following description similar characters of reference indicate like parts in the several fig- 4 ures of the drawing.

Referring to Fig. 3', the numeral Ill represents one of the supports, bars or frame members of a window sash, door or the like which contains an opening across which a transparent pane H of 45 glass extends. The pane is mounted on this support by engaging one side of the edge portionv of this pane with the shoulder l2 of a rabbet on the inner side of the sash or the like and holding this pane in place by means of a strip I3 of putty 50 which engages with the opposite side of the edge portion of the pane and the adjacent transverse wall M of this rabbet. It is well known that this putty in time becomes very hard due to the drying out of the oil therein whenapplied in a plastic 55 state to: the pane and sash, and it is, therefore,

not only very difficult to remove the putty by ordinary tools but this operation also frequently causes injury to the hands when the putty removing tool slips.

Although the putty remover embodying my in- 5. vention may be variously constructed as to its several details the same in its preferred form, as shown in the drawing, is constructed as follows:

The numeral [5 represents the main support,

base or'frame of the apparatus which preferably 10 has the form of ahorizontal plate made comparatively thin and provided on its underside with longitudinal flanges or ribs I6 and transverse ribs or flanges H in order to stiffen the plate and thereby render the support very strong but light and durable. This support or base is adapted to rest on the side of the sash member with its inner edge close to the transverse wall M of the rabbet.

In order to hold the support in place while removing the putty, means are provided which preferably consist of two sharp pins or spurs l8 arranged on the support close to its inner edge and adjacent to the inner corners thereof and proj ecting from its inner side so that these pins may be pressed into the wood of the window sash or door close to the rabbet wall I, as shown by dotted lines in Fig. 3, thereby holding the support reliably against horizontal displacement.

Above the support is arranged a carriage which is movable lengthwise of the same and also vertically relative thereto in order that the putty cutting tool which is mounted on this carriage Y may be moved lengthwise of the strip of putty during the operation of removing the same and also enable the putty cutting tool to be moved into and out of its operative position. In its preferred form this carriage comprises a horizontal plate l9 which is provided on its upper side with a transverse rib Zll so that the carriage as a whole is comparatively light and strong. At its outer or rear end the rib of the carriage is provided with a cylindrical bearing opening 2| which receives a longitudinal guide rod 22 of cylindrical form in cross section arranged over the support !5 adjacent to the outer edge thereof andsecured at its opposite ends to posts 23 rising from the ends of this support. By means of this construction the carriage is capable of not only sliding lengthwise of the guide rod 22 but also capable of turning transversely or at right angles to the axis of this rod due to the pivotal connection between this carriage and the guide rod.

Upon the inner part of the carriage is mounted the cutting tool whereby the putty is removed from the window sash or the like, which tool is so mounted on the carriage that it is moved bodily therewith lengthwise of the strip of putty for engaging successive parts of the same during the removing operation. In its preferred form this cutting tool is so constructed that it acts upon the putty by a rotary motion in the manner of a routing tool, and as shown in Figs. 2, 3 and 5, the same preferably comprises a plurality of longitudinal cutting blades 24 which are arranged in an annular row and have their front or lower ends disconnected from each other while their rear ends are connected by a circular head or disk 25. During the operation of this cutting tool the lower disconnected ends of its blades are engaged with the putty while the axis of the cutter is arranged parallel with the wall 54 of the rabbet and the lower ends of these blades are close to or in engagement with the adjacent side of the glass pane, as shown in Fig. 3. Upon rotating the cutter while in this position and also moving the same lengthwise of the strip of putty the latter will be cut away from the window sash or the like in the form of shavings or chips so as to leave the rabbet of this sash clear of putty and enable the remnants of glass to be easily removed and a new pane inserted in the window sash and secured in place by fresh putty. As the strip of putty is removed from the window sash the shavings or chips escape from the spaces between adjacent blades and are thrown to one side thereby preventing the cutter from becoming choked or clogged and also cleaning the surface on the transverse wall I of the rabbet which receives the putty for holding the new pane of glass in place.

The rotary movement of the cutter may be produced in various ways but preferably by means of an upright shaft 26 which is journaled in a suitable bearing on the front part of the carriage and which is provided at its lower end with an externally screw threaded stem 2! entering a threaded opening in the cutter head 25 while its upper end is provided with a laterally projecting crank 28 terminating in a handle 29 whereby the shaft and the cutter mounted thereon may be turned manually.

For the purpose of enabling the rotary cutter to be adjusted vertically in order to adapt the same to the depth or thickness of the strip of putty which is to be removed the means for journaling the shaft of the cutter are so constructed that they also permit of adjusting the cutter shaft vertically relative to the carriage and the strip of putty, these means being preferably constructed as shown in Figs. 1, 2 and 3, as follows:

The numeral 39 represents an upright bearing sleeve which turns with its periphery in a cylindrical bearing 3! formed vertically in the front part of the carriage and which receives in its bore the shaft 26. This sleeve is held against vertical movement in its bearing by a collar 32 at its upper end engaging with the upper side of the carriage rib it, and a retaining member 33 having preferably the form of a driving gear pinion secured by a screw joint to the lower end of the sleeve 35% and engaging with the underside of the carriage plate 59. On one part of its periphery the cutter shaft 6 is provided with a longitudinally flattened face which is engaged by the inner end of a clamping screw 35 arranged in a thread opening formed in the collar 32 of the bearing sleeve and provided at its outer end with thumb Wings 36 for turning this screw. Upon loosening this clamping screw the cutter shaft may be raised and lowered in the sleeve 30 until the rotary cutter is in the proper position relative to the strip of putty which is to be removed and thereafter the clamping screw is tightened for holding the cutter shaft against vertical movement in this sleeve.

Means are provided whereby the carriage is caused to move automatically lengthwise of the strip of putty at the same time that the rotary cutter is turned, thereby causing the cutter to operate progressively on the strip of putty and gradually remove the same. Although various means may be employed for this purpose those shown in the drawing have been found satisfactory and are constructed as follows:

The numeral 3? represents a longitudinal gear rack arranged on the upper side of the support l5 and preferably formed integrally therewith for the purpose of reducing the cost of manufacture.

The teeth of the gear rack El intermesh with a driven gear pinion 38 which is arranged on the underside of an intermediate gear Wheel 39 and preferably formed integrally therewith. This intermediate gear wheel is arranged on the underside of the carriage and has a hub 4-8 which fits in a circular recess M in the carriage, thereby aiding in centering the intermediate gear wheel and the driven gear pinion 38 relative to the carriage and gear rack. The intermediate gear wheel and driven pinion 38 are secured to the lower end of an upright arbor 2 by means of a transverse retaining pin 33, this arbor being journaled with its upper part in a bearing opening 46 formed in the central part of the carriage and provided at its upper end with a head G5 which engages with a recess 46 in the upper side of the carriage rib, as best shown in Fig. 3. Engagement of the arbor head 35 and the intermediate gear wheel 39 with the upper and undersides of the carriage serves to hold these parts against vertical displacement relative to each other.

The intermediate gear wheel 39 meshes with the driving gear pinion 33 on the lower end of the bearing sleeve 39 and as the driving and driven pinions are of smaller diameter than that of the intermediate gear wheel 39 a speed reducing effect is produced, whereby the rotary cutter will be turned a large number of times as compared with the number of rotations of the driven gear pinion, so that the carriage will be moved lengthwise of the strip of putty at a comparatively slow rate while the cutter will be turned at a relatively high speed, thereby insuring the production of a multiplicity of cutting actions on the putty as the cutter is moved bodily and thus insure complete removal of the putty from the rabbet of the window sash and leave an even flat surface thereon which will permit complete removal of any glass remnants and enable replacement by a new pane to be effected without difficulty.

Preparatory to using this apparatus the carriage is turned upwardly relative to the support in order to permit of conveniently attaching this support to the wooden bar of the window sash, door or the like from which the putty is to be removed, and then the carriage is moved lengthwise of this support into the desired position for engaging the cutter with the strip of putty, this operation also engaging the driven gear pinion with the gear rack. Upon now rotating the shaft by means of the handle the cutter will turn and also move bodily along the strip of putty so as to remove whatever remnants of the same may have been left 'on the window" sash. Ifthe. putty is only present in pieces or patches on different parts of the rabbet of the window sash thecarriageandthe parts mounted thereon can be quickly shifted lengthwise from one part of the rabbet to another by lifting the carriage sufficiently to disengage the driven gear pinion from the rack and when the cutter has been brought in line with the part of'therabbet from which putty is tobe removed then the carriage is again swung downwardly for engaging the cutter with the respective part of the putty and also reengaging the driven gear pinion with the gear rack so as to restore the automatic feeding operation of the carriage.

These operations can be performed with ease and facility and thus permit the strips of putty to be removed from the rabbets of the window sash easily and quickly, thereby materially reducing the cost of doing this work.

Moreover the removal of the putty can be effected without running the risk of cutting the hands by contact with splinters of glass which frequently occurs when removing old putty from window sash in the manner practiced heretofore.

In some forms of window sash the upper cross bar 41 of the sash is provided with a groove 48 at the corner between the shoulder 49 and wall 58 of its rabbet, as shown in Fig. '6, which groove receives the upper edge of a windowpane, a tight joint being produced between this pane and the respective part of the sash by filling the vacant space in this groove by putty. For the purpose of removing the putty and remnants of glass which may be present in the groove 48 preparatory to reglazing this sash, a cutter may be employed of the character shown in Figs. 6 and '7. In its preferred form this last mentioned cutter consists of a hub connected by means of a screw joint withthe lower end of the cutter shaft 26 and provided at its lower end with a plurality of laterally projecting blades 52 which are arranged in an annular row and adapted to sweep through the groove 48 upon rotating this cutter and also to engage with successive parts of this groove upon moving the cutter lengthwise thereof by means of the automatic shifting mechanism shown in Figs; 1, 2, 3'and 4.

As a whole this apparatus is comparatively simple in construction and composed of relatively few parts which are not liable to get out of order and the same can be'readily adapted to various window sashes or the like and operated conveniently for removing old, hard putty efficientlymounted on said support and connected with 013- posite ends of said rod. I

2. A putty remover comprising a normally stationary support adapted to rest on a sash or the like from which the putty is to be removed,

a longitudinal guide rod mounted on said support, a carriage having an opening in its rear I part which receives said rod and whereby said carriage is slidable and also rotatable on the same, an upright shaft journaled on the front part of said carriage, and a cutter mounted on said shaftfand adapted to engage the putty on the sash.

3'. A. putty remover comprising a normally stationary support adapted to rest-on a sash or the like'from which-the putty is tobe removed, a longitudinal guide rod mounted on said support, a carriagehaving an opening in its rear part which receives said-- rod' and: whereby said carriage is slid'able and also rotatable'on the same, an upright sha-ft: journaled. on the front part of said carriage and provided at its upper end with a hand crank for turning the same, and a rotary cutter mounted on the lower end of the shaft and adapted to engage the putty to be removed.

4. A putty remover comprising a normally stationary support adapted to rest on the sash or the like from which the putty is to be removed, a carriage movable lengthwise on said support and also rotatable on the same, a rotary cutter adapted to engage the putty to be removed, a shaft upon which said cutter is mounted, means whereby said shaft is rotatably mounted on said carriage, and meansfor adjusting said shaft lengthwise of its axis for adapting the cutter to the thickness of the putty.

5. A putty remover comprising a normally stationary support adapted to rest on the sash or the thickness of the putty, including an upright bearing sleeve which is journaled on said carriage and in which said shaft is adjustable lengthwise.

6. A putty remover comprising a support adapted to rest on the sash or the like from which the putty is to be removed, a carriage movable lengthwise on said support, a rotary cutter adapted to engage the putty to be removed, a shaft upon which said cutter is mounted, means whereby said shaft is rotatably mounted on said carriage, and means for adjusting said shaft lengthwise of its axis for adapting the cutter to the thickness of the putty, including an upright bearing sleeve which is journaled on said carriage and in which said shaft is adjustable lengthwise, said shaft having a longitudinally flattened face, and a clamping screw mounted on said sleeve and engaging with said flattened face of the shaft.

'7. A putty remover comprising a support adapted to rest on the sash or the like from, which the putty is to be removed, a carriage movable lengthwise on said support, a rotary cutter adapted to engage the putty to be removed, a

shaft upon which said cutter is mounted, means whereby said shaft is rotatably mounted on said carriage, and means for adjusting said shaft lengthwise of its axis for adapting the cutter to the thickness of the putty, including any upright sleeve which is journaled on said carriage and in which said shaft is adjustable lengthwise, a collar arranged at the upper end of said sleeve and engaging with the upper side of said carriage, a retaining member detachably connected with the lower end of said sleeve and engaging with the lower side of said carriage, said shaft having a flattened face, and a clamping screw arranged in said collar and engaging said flattened face of the shaft. 7 i 8. A putty remover comprising a support adapted to rest on the sash or the like from which gaging with the upper side of said carriage, a driving gear pinion secured to the shaft and engaging the underside of said carriage, an intermediate gear wheel meshing with said driving pinion, a drive-n gear pinion turning with said. 5

intermediate gear wheel, a longitudinal gear rack on the support meshing with said driven gear pinion, and means vfor adjusting said shaft lengthwise in said sleeve.

LAWRENCE E. HARMON, JR.

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