US1662276A - Machine for setting glaziers' points - Google Patents

Description

Mm'ch13, 1928.

w. s. MQWER MACHINE FOR SETTING GLAZIERS POINTS Filed May 3, 1927 7 n Y O I V Aw in will 3- Patented Mar. 13, 1928.

UNITED STATES 1,662,276 PATENT OFFICE.

WILL S. MOWER, OF WINDSOR, VERMONT, ASSIGNOR TO HUBBARD 8c MGCLARY, OF

WINDSOR, VERMONT, A COPARTNERSHIP CONSISTING OF ANDREW IB. MOCLABY AND HORACE P. MOOLABY.

MACHINE FOR SETTING GLAZIERS POINTS.

Application filed May 3, 1927. Serial No. 188,480.

The present invention relates to an improvement in machines for setting glaziers points.

The object of the invention is to reorgalr ize and improve machines of this character, and to this end the invention consists in the improvement hereinafter described and par ticularly defined in the claim.

In the accompanying drawmgs illustrating the preferred form of the invent on, Fig. 1 is a. side elevation of the machine; Fig. 2 is a. similar side elevation with the head of the machine shown in section; Flg. 3 is a bottom plan; Fig. 4: is a section taken on the line 4-4, Fig. 2; Fig. 5 is a vertical medial section; Fig. 6 is a plan of the hammer; and Fig. 7 is a front elevation of the lower part of the head.

The illustrated embodiment of the invention is described as follows: The machine consists principally of a head for carrying a stack of glaziers points, and a driver for driving them one at a time at thepomt selected by the operator. It is provided with a handle for carrying it and a driver operating. lever. The frame of the machine, indicated in a general way by the reference character 10, carries at its head 11, and is joined at its upper ends the handle 12. The frame is made intwo halves united by rivets 14. The frame 19 hollow for the purpose of reducing the w 1 ht. v p

T he glaziers points 15 are received in a 3:! tube .16 formed in the head. The shape of this tube is shown in Fig. 4. The points are inserted in a stack, being united together by means of a suitable fragile cement such as parafiine or wax. The points are fed downward in the point carrier by means of a follower 17 carried by a follower rod 18. The follower 17 is shown in plan in Fig. {1. It has a slender neck 19 which projects outwardly from the spring plate 20 carried on the lower end of the follower rod 18. A spring 21. encircles the follower rod 18 and engages the end of the sprlngpocket 22 at one end, and the plate 20 at the other normally causing the follower to press down on the stack of points. A but-ton 23 on top of the follower rod serves to limit the downward?- movement of the follower by engagement with the frame of the spring pocket 22. The length of the follower rod'is such front end the that when the button 23 strikes the top of the spring pocket the follower will be flush with the bottom of the head so that it will press down the last point into position to be driven. The button also serves as a means for lifting the follower when it is desired to insert a new supply of'points. By taking hold of the button and lifting it vertically, thereby compressing the spring, the follower may thereafter be turned to one side, as shown in Fig. 4, in which position the neck 19 of the follower enters the notch 191 in the frame formed to receive it, there by permitting the insertion of a new stack of points in the top of the point carrier, after which the follower will be turned and allowed to press down upon the top of the stack of points.

The stack of points normally rests upon the driving plate 24 of the point drive 25. This driving plate is shown in bottom plan 1n Fig. 3, and has at its front end a notch 26 which is adapted to engagethelowermost point pressed downward through the point carrier, and at the proper time todrive the point into the wood of the-sash to which it ispresented. The edges 27 of the driving plate are turned up, as shown in front ele vati'on in Fig. '7, and embrace the lips 28 formed upon the lower end of the head. The driving plate is secured to the driver proper by meansof the rivets-29 and 30, the rivet29 securing the extreme rearward end of the driving plate to the driver 25, and the rivet 30 being positoned at the front end of the driver 25. v

The driver is provided on its rear end with a driver bar 31, which is received in a hole in the foot carrier 32 supported on the lower end of a portion 33 of-the frame extended downwardly from the rear end of the handle 12. This foot carrier 32 carries a foot 34 secured to the foot carrier by the flat-head machine screws 35. The foot is; provided with a hole in alignment with the hole in the foot carrier to permit the driver rod 31 to be forced rearwardly when the driver is retracted. p t

The driver rod 31 is encircled with the driving spring 36 which presses at its rear end against the foot carrier and at its front end against thehammer 25. The hammer is retracted a distance suflicient to permit the points to be forced downwardby the point follower so as to present a single point at the bottom of the stack of points to the driving plate. Then the driver is released and the driving spring forces the driver forward with a force suflicient to cause it to drive the first point into the sash. The driver is provided with a tempered steel latch 37, pivoted at 38 in the channel 39 of the driver. The pivot is a piece of wire which extends through the two sides of the driver and through the latch. The latch is normally supported in the position shown in Fig. 5 by the latch spring 10, secured by the rivet 30 in place. The rear end of the latch is provided with a round hole at and two rearwardly extended portions 1-2 which embrace the adjusting screw -13, the two rearward extensions of the latch being provided with holes screwthreaded to receive the adjusting screw 43. After the hole in the latch is tapped the two rearwardly e.\' tended portions 2 of the latch are compressed slightly so as to cause them to pinch and hold the adjusting screw a3 in adjusted position. The head of the adjusting screw 43 is knurled to facilitate turning it for adj ustment. When the screw is screwed down ward it thereby tips the front end of the latch downward and causes the earlier tripping of the hammer; that is to say, it shortens the retracting movement of the hammer because the hammer actuating lever ceases to engage the latch the earlier, the lower the front end is adjusted.

The hammer actuating lever is is of the bell crank type, pivoted on the pin 45, riveted through the two sides of the frame. The lower arm 46 ot the bell crank lever extends downwardly and is provided on its rear face with a wear plate 47. This wear plate is supported in a recess and is secured in place by rivets. The other arm 48 of the bell crank hammer actuating lever 4A is adapted to be grasped by the four lingers of the operator, who places his hand down upon the handle and his lingers around the arm 48.

The hammer actuating lever is advanced by a spiral compression spring 49, which lies between the two sides of the frame in front of the handle, and engages at its upper end a spring tip formed on the inside of the frame, and at its lower end it engages a spring tip formed upon the upwardly directed arm 50 of the bell crank lever 44. In Fig. 3 the driving plate and driver are shown in retracted position. As above explained, this retracted position may be made greater or less, depending upon the force of the blow required in order to drive the point into the sash. In case of a sash made of hard wood, the adjusting screw on the driver latch should be adjusted so as to cause the retraction of the driver a greater distance than in the case of the use of the driver on a soft wood sash. Furthermore, the adjustment of the driver latch may be availed of to take up wear of the actuating lever and the latch.

The operation of the machine is simple. It is lo aded, as has been described, by lifting the follower rod and follower and turning the follower to one side to the position shown in Fig. 4, whereupon a stack of points is placed in the point carrier. The follower rod is then turned and the follower is pressed down upon the stack of points by the follower spring, holding the stack down upon the driving plate The machine is then ready for use. The operator grasps the bandle, bringing his palm against the top of the handle and extending his lingersdown under the arm 48 of the hammer actuating lover. The strength of the driver spring 256 is such that the machine may be easily lifted by the lingers without retracting the driver. The machine is then carried to the position where it is desired to drive a point, and the front of the head is presented to the sash where it is desired to drive the point, the foot resting upon the glass, stcadying it and holding it in upright position. The machine then rests upon the foot and the driving plate. Then the operator, pressing down upon the handle, contracts his hand, thereby retracting the hammer. As soon as the driving plate recedes to a position such as to permit the stack of points to be forced downwardly by the follower and its spring, the entire stack of points is pressed down until the lowermost point rests upon the glass, the parts occupying the position shown in Fig. 2. A little further pull upon the actuating lever releases the hammer, and it springs forward engaging the lowermost point resting on the glass and driving it into the sash.

The patent to George W. Hubbard, No. 252,379, dated January 17, 1882, illustrates the machine upon which the present invention is an improvement. The machine of this patent was manufactured for many years by Hubbard & McClary, a copartnership of which the present assignees are the successors. In the machine of the Hubbard patent the points used, like those used in the present machine, were the diamond shaped points, and they were advanced to driving position by means of a follower rod provided with a weight upon its upper end. The objection to this feature of the patented construction resides in this, that 1n some cases it is desirable to present the machine to the sash in some other position than a horizontal one, and when so resented the follower weight P failed of e cient action; besides which the follower was liable to fall out of the machine if it were laid down or accidentally knocked over in preparing work for the insertion of the points. In the patented machine the lower end of the head was provided with a plate secured in position by rivets. This plate extended outwardly on both sides of the head and was provided with a diamond shaped hole through which the points were fed. In the present machine, this plate is done away with, and the driving p ate is supported directly upon lips formed upon the lower end of the head. In the machine of the patent the driver actuating lever was not provided with a wear plate, as in the machine of the present application. This permits the use of cast iron or other cheap metal for the lever,

be possible without making the lever entirely of tool steel. The driver actuating lever of the patent was retracted by a fiat spring R, whereas in the present construction a coil spring is employed. An advantage arises from the use of the latter by reason of the elimination of the friction from the front end of the flat spring and the eflicient appli cation of the force of the'coil spring to the and at the same time makes the levermore durable at less expense than would lever through the medium of the arm used by the applicant to engage the coil spring.

The several points of difference between the present construction and that of the patent reduce the cost of manufacture substan tially and increase the eflectiveness and durability of the device.

Having thus described the inventiomwhat is claimed is:

A machinefor setting glaziers, oints having a frame provided with a hanc le, a head having a point carrier, a follower supported upon'the lower end of a follower rod, and

a follower spring embracing the follower rod normally pressing the follower down upon the stack of points carried in the point carrier, the frame being provided with a notch at the upper end of the point carrier to permit turning the follower to one side for the purpose of loading the point carrier with a stack of points.

In testimony whereof I have signed my name to this specification.

WILL s. MOWER.

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