US1493143A - Hand-drill pedestal - Google Patents

Description

May e, 1924. 1,493,143

C.,BODMER HAND DRILL PEDESTAL FiledDec. 9. '3922 I v Gnomes;

Patented May 6, 1924,

UNITED STATES y 1,493,143. PATENT OFFICE..

CHRISTIAN RODI/IER, OF NEW BRITAIN, CONNECTICUT, ASSIG-NOR TO THE STANLEY WORKS, OF BRITAIN, CONNECTICUT, A CORPORATIONOF CONNECTICUT.

HAND-DRILL PEDESTAL.

Application filed December 9, 1922. `Serial No. y605,852.

To all whomz't may conc-ern.'

' citizen of the United States, and a resident ofvNew Britain, county of Hartford, State of Connecticut, have invented certain new and useful Improvements in a Hand-Drill Pedestal, of which the following is a specifi cation.

This invention relates generally to a support for a boring tool, and has particular reference to a pedestal for use in connection with a hand drill, for instance, lfor the purpose of supporting'and guiding the same in proper relation to the work to be operated u on.

The aim of the present invention is to provide a pedestal of. this sort having various features of novelty and advantage, by the use of which the boring tool, for instance ahand drill, may be readily` supported, for sliding or feeding movement, with great .steadiness in proper relation to the work to be operated upon. My improved pedestal is readily adjustable so as to kbring the toolinto proper alinement with the work or the surface upon which the work is to be supported; and it is characterized by its extreme simplicity in construction, by its lightness in weight, its strength and durability, and its economy in manufacture.

In the accompanying drawing, wherein I have shown, for illustrative purposes, one embodiment which the present invention may take,

Fig. 1 is a side elevation of the pedestal and feed lever, a hand drill being shown in dot-ted lines for purposes of illustration only;

Fig. 2 is a rear `edge view of the lower end of the pedestal;

Fig. 8 is a sectional view taken on line 8-3 of Fig. 1; and

Fig. 4 is a sectional view taken on line 4-4 of Fig. 1. i

Referring to the drawing in detail, A denotes generally my improved pedestal secured to a base B of any suitable sort, for instance, a work bench or other suitable member on which the work may be positioned during the drilling operation. C denotes a feed lever, and D denotes, generally, a hand drill, thel latter being shown in dotted lines, as the particular construction thereof forms no part of the present invention but is made the subject matter of a copending application. For present purposes, it is suihcient to say that the hand drilly is provided with a frame having a pair of parallel side members 0l adapted to slidingly fit in the guides provided on the frame A. The drill framev is pivotally connected tothe feed lever as at d.

The pedestal A. includes a frame of gen'- erally right angular form inside elevation, it having a standard or upright portion 10 arising from the medial line of a foot 11, and a lateral extension or overhanging portion 12 on the side face of which are mounted for adjustment slide housings 413k in which the drill is suitably guided for longitudinal movement. In the present instance, the pedestal frame is in the form yof a thin and relatively wide,`flat `web or plate reinforced by ribs and apertured, as at 15sol astosave metal and reduce the weight fof the pedestal. In the present illustrative disclosure, one of these ribs, designated by the numeral 16, is at thev forward edge of-the web, and another of the ribs 17 is located centrally-of-that portion of the web which lies between the rear and upper edges'of the frame and the openings 15. These ribs follow the general right angular shape of the web', and they are connected at the corner of the pedestal by a diagonally disposed rib 18.A One face of the overhanging portion 12 ofthe frame is flat so as to provide a bearing'surface for the slide housings 13. The other face of the eX- tension is reinforced by suitable ribs or bosses 19 which also serve the purpose of increasing I the thickness of those portions of the extension through which the screws 20, for securing'the slide housings, extend.V f y i y It will be understood that ribs 16, 17 and 18' are provided on each side face ofthe frame, `as shown most clearlyy inFig, 2. These ribs, of course, reinforce 'and ajo strengthen the frame, thus ,permittingA -it to be manufactured from a relatively small amount of material. "Thus, the structure has extreme lightness but sufcient durability and rigidity to withstand the strains` to which it is subjected in use. These ribs further serve the purpose of insuring gradual and proper cooling of the metal in the manufacture of the pedestal. If it were not for these ribs, the relativelyfthin web would cool so rapidly that it would be extremely brittle and thereby liable of fracture. By providing the pedestal with ribs, as described, the rapid cooling of the cast structure is retarded and more or less equalized. By preference, the ribs 16 are of greater thickness than the ribs 17 and 18, for they being at the forward edge of the web, they must of necessity be of a larger mass to effect the proper retarding effect against rapid cooling or chilling of that portion of the web lying between the forward edge of the pedestal and the openings 15.

Each of the slide housings 13 is in the form of a. bar having laterally extending ears or lugs 30 provided with enlarged elongated apertures 31 through which the screws 2() extend. The opposed faces of the slides are longitudinally grooved as atk 38 so as to slidably receive between them the frame d of the drill. It will be seen that, since the apertures 31 in the ears 30 ofthe slide housings are relatively larger than the screws 20,. these housings may be adjusted in, substantially, the. plane of the fra-me of the pedestal so as to bring the drill in proper alinement in that plane to the work s upporting surface of the base B. After the slide housings have been thus adjusted, the screws 20 may be tightened up to permanently hold them in their adjusted positions.

For the purpose of providing adjustment of the drill in a plane at right angles to that in which the housings are adjustable on the pedestal, the foot of the pedestal on its under face is bevelled each side of its longitudinal medial line, as shown most clearly in Fig. 2, thus fulcruming, so to speak, the pedestal along a line lying in the plane of the web. The foot, which is preferably of T-shape, is

` suitably apertured to receive screws 34 for securing the pedestal to the base or work bench B. It will be seen that by loosening one of the side screws 34 andl tightening up the other one of these screws, the pedestal may be' angularly adjusted to bring it into perpendicular relation, for instance, to the work supporting surface. This all means that, since'the slide housings are adjustable in one plane and the pedestal, as a whole, is adjustable in another plane substantially at right angles to the first one, means are provided. for bringing the structure in` such position that4 the drill may be moved longitudinally on a line substantially perpendicular to the work supporting surface. The arrangement for bringing about this adjustment is very simple, yet quite effective.

,The feed lever C is preferably cast, it being` in the form of a narrow, thin web or strip, reinforced by a central rib 40 so as to equalize and retard rapid chilling during the manufacture of. the lever and to obtain strength and lightness. This lever is connected lat one endby means of a link 4.1, to

a boss 112 cast integral with and extending from the upper corner of the pedestal. As previously stated, the lever is connected as at d to the drill frame.

It is, of course, obvious that my invention is susceptible of various modifications and changes which are within the spirit of the invention without departing from the scope of the following claims, it being understood that the present disclosure of my invention is by -way of illustration only and it is not to be taken as restrictive of my conception.

I claim as my invention 1. A hand drill pedestal of the character described comprising a relatively flat frame having an upright and an overhanging extension, a foot at the lower end of said upright having its under surface in the form of an obtuse. angle with its apex substantially in the plane of the frame, said footl support, and means on said pedestal forv slidably supporting a hand drill or the like,

said lastimentioned means being adjustable on said frame lin a plane at an angle to that in which said frame is adjustable.

3. A hand drill pedestal of the Acharacter described including a frame provided with a foot having an edge on which said frame is fulcruined, means for adjustably securing said foot to a suita'ble support, and slide housings mounted on said frame for adjustment in a plane at a right angle to that in which said frame is adjustable.

4. A hand drill pedestal of the character described comprising a relatively flat frame having an upright and an overhanging extension, a foot at the lower end of. said upright having its under surface in the form of an obtuse angle with its apex substantially in the plane ofthe frame, said foot being apertured to each side of said frame, and screws located in said apertures for securing said foot vto asuitable support; slide housings mounted on the side face of said extension and adapted to slidablysupport a hand drill, said slidehousings havingapertured ears, and screws ext-ending through said ears and into' said extension, said screws being smaller than. the' apertures in said ears whereby saidhousings are adjustable.

CHRISTIAN BODMER.

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