US1747790A - Tool - Google Patents

Description

7 Feb. 18, 1930. R. s. PEARSON 1,747,790

TOOL Filed June 10, 1927 Qrwenr fi (5%551 770 5, flarsm Patented Feb. 18, 1930 PATENTF ROY S. PEARSON, OFOHICAGO, ILLINOIS 'roo n Application filed June 10,

This invention relates to improvements in toolsparticularly adapted for use in connection withthe fitting of window'lifts, strap hinges, door escutcheons, lock plates, etc., and one of the objects of my invention is the provision of a tool of this character which is specially adapted for use in temporarily retaining such articles in position while the fastening members are being attached thereto or secured in position.

Another object of the invention is the provisionof a. tool of the above character which is readily adapted for use in scribing mortises by holding the hardware in place such as lock plates, strike plates, pivot plates and the like while the outline of the mortise is being Fig. 1 1s a longitudinal central section.

taken through a tool embodying my invention' Fig. 2 is an end elevation of the improved tool shown in Fig. 1;

Fig. 3 is a section taken on line 7-7 of Fig. 1;

Fig. 4 is a section taken on line 8-8 of Fig. 1.

Upon referring to the drawings, it will be evident that I have shown a tool which em- 1927. Serial No. 197,980.

bodies my invention and is designated generally by the reference character30. The tool 30 preferably comprises a handle 31 which may be formed of any suitable material and is preferably provided with a cen- Q tral bore 36, the bore 36 being formed with a portion-37 of reduced diameterwhich slidably journals one end ofa pin 38 that hasits other end slidably journaledin the larger portion of the bore 36. Screw-threaded into one end of the pin 38 is a pin40which is provided with a knurled head 41atits outer end whereby it maybe rotated to longitudinally displace the pin 38. As "shown, the head 41 abuts against thejouter side of an apertured disc 42 which is secured to the handle member 31 by screws 44, or the equivalent. A. collar 45rigidly secured to the pin 40 abuts against the inner side ofthe disc 42 and cooperates with the head 41 to prevent angular displacement, of the pin 40. The pin 38 is held against rotation relative to the handle 31 by a lug 47 which rides in a slot 48 formed in the handle, the lug 47 being preferably formed integral with "the 7 pin 38. One end of the pin 38, is pointed and is preferably provided with screw-threads 49 so that the tool 38 may be used in substantially the same manner as similar tools. In practice, a double thread is preferably provided upon the pointed end of the pin 38. The pin 38 may be brought into a plus rality of adjusted positions with respect to the handle 31 so as to have the screwthreaded end 49 project any desired distance so from the handle member 31. This is advantageous in that, in some instances, it is only necessary to-have the screw-threaded end 49 project a. relatively small distance from the handle 31 as otherwise it would tend to mar the woodwork or to make too large holes therein. When the screw-threaded point 49 of the pin 38 is to be brought into an adjusted position with the handle 31, it is only necessary to manipulate the head 41 of the pin in such manner that the pin 38 will be longitudinally displaced in one direction or the other as the case may be. As illustrated in Fig. 1, the handle member 31 may be reinforced by a metallic ferrule 31, or the equivalent. 7

When any of the above described devices is to be employed to temporarily secure a striker plate, escutcheon plate, or any other piece of hardware to an object, the piece of hardware is correctly positioned upon the object and the threaded point on the tool is in serted-throughan aperture, or the equivalent, provided in the hardware, the threaded point being screwed into theobject. It will be readily understood that it is advantageous to have a double screw-thread as relatively few turns of the handle are required to drive the point into the object so that the hardware will be clamped between the object and the shO llderprovideda-t the base of the threaded point. Of cOllrse, the threaded point forms a hole in the object, in which hole, the screw, or the equivalent, may be quickly driven when the threaded point has been withdrawn therefrom.

Having thus described my invention, it is obvious. that various immaterial modifications may be made inthe same without departing from the spirit of my invention; hence I donot wish to be understood as limit,-

, ingrmyself to the exact form, construction,

arrangement and combination of parts heresigned my name.

ROY S. PEARSON.

in shown and described, or uses mentioned.

WhatI claim as new and desire to secure by Letters Patent is: c

1. A device of the kind described .COlnpriS- ing a handle, a pin slidably mounted in the handle and provided with a pointed screwthreaded end adapted to project from said handle, a second pin rotatably mounted; inthe handle and screw-threaded into the firstmentioned pin whereby rotation. of said sec:

ond pin 'will' result in longitudinal displace mentof the first-mentioned pin, and means for preventing longitudinal displacement of said second pin.

2. A device of the kind described. comprising'a handle, a pin slidably mounted in the handle and provided with a pointed screw threaded end adapted to project from said handle, a secondv pin rotatably mounted in the handle and screw threaded into the first mentioned pin' whereby rotation of said second pin will result in longitudinal displace ment of the first mentioned pin, means for preventing therotation of said first men.- tioned pin, and means for preventing longitudinal displacement of said second pin.

3; A device of the kind described,c'omprising a handle having a passage therethrough with a groove communicating with said passage, a pinslidably mounted in said passage having 'a tool at one end thereof normally projecting from said handle, a member en,-

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