US695973A - Bearing for scale-pivots. - Google Patents

Description

Patented Mar. 25, 190 2.

6. A. N. WAHLEN, BEARING FOR SCALE PIVOTS.

(Application Med Oct. 22, 1901.;

(No Model.)

INVENTOR.

limits terns ATnNT OFFICE.

GUSTAVUS A. N. IVAIILEN, OF DETROIT, MICHIGAN.

BEARING FOR SCALE-PIVOTS.

$PEGIFICATION forming part of Letters Patent N 0. 695,973, dated March 25, 1902. Application filed October 22, 1901- Serial No. 79,550. (No model.)

To (LZZ whom it may concern:

Be it known that I, GUSTAVUS A. N. WAH- LEN, a citizen of the United States of America, residing at Detroit, in the countyof Viayne and State of Michigan, have invented certain new and useful Improvements in Bearings for Scale-Pivots, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to that class of bearings in which small blocks of agates or other hard material are employed to support the various knife-edge pivots used in scale construction; and my invention particularly refers to an improvement in the manner of securing said blocks to their supports, with the principal object in View to enable me thereby to use less expensive agates (or other equivalents) than required in the present constructions and also to facilitate the mounting and dismounting without the necessity of disturbing any parts thereof.

To this end my invention consists in the novel construction, arrangement, and operation of parts, all as more fully hereinafter described in connection with the accompanying drawings, in which Figure l is a perspective view of a scaleloop to which my invention is applied. Fig. 2 is an enlarged vertical central cross-section thereof. Figs. 3, 4, 5, 6, and 7 are detached perspective views of each of the different parts of which the aforesaid scale-loop is composed, as indicated by the letters of reference. Fig. 8 is a cross-section, similar to Fig. 2, of a perspecti.

ble-bearing scale-loop. Fig. 9 is a kview showing my invention as applied ii to a scaie member.

. securing the bearing-block direct showing a modification of Fig. 9.

Fig. 10 is a cross-section Fig. 11 is a vertical longitudinal section through the bearing-block detached.

My improved bearing-block consists of two complementary parts A and A, which together form a prismatic bearing-block of the usual size and form as heretofore used in the construction of scale-bearings of this character. The part A forms the face portion and is an agate or hardened steel with the usual depression a for the reception of the knifeedge pivot, while the part A is of cheaper material, such as brass, and forms the base portion of the block.

The part A of the bearing-block is of the same horizontal dimensions as the part A and is provided at the opposite ends with upward projections or lips a, and the partA is correspondingly cut away at the under side, as at (1 so that when the part A is placed upon the part A the former is prevented from 1011- gitudinal displacement. While this object may be obtained by forming the meeting faces of the two parts with interlocking parts of any description, I prefer the construction shown in the drawings, in which the cut-away portions a are formed by beveling off the edges of the part A at the ends and providing the part A, correspondingly therewith, with counterpart raised lips a. The part A is further provided with a transverse opening or groove a in its body suitable to loosely admit the securing-pin, as will appear more fully hereinafter. In Figs. 9 and 10 I have shown the manner of securing this blockbearing into a bearing-support B of a scale member by forming or providing a seat in said member adapted to inclose the block upon its two sides and bottom and forming a casingorhousingtherefor. Throughtheside walls of this housing I then bore holes in line with and corresponding to the groove (1 in the part A of the bearing-block and drive a pin 0 through it. This pin will prevent the longitudinal displacement of the bearingblock, and to prevent its vertical displacement 1 provide or form the housing with slightly-projecting retaining-flanges I), bearing against the edges of the bearing-block, as shown. a

In constructing a scale-loop the bearingblock is supported in a similarly-constructed housing 0, which may be, as-usual, of sheet metal bent to form a bearing for the sides and bottom of the bearing-block, with retainingflanges c integrally formed thereon. The side walls of this housing are provided with openings d, corresponding to and in line with the groove a of the bearing-block, and through these openings and groove alocking-pin D is passed, which also forms the pivotal connection with the scale-loop E.

I preferably connect the pin and the loop detachably together to permit the dismounting, and to this end I form the pin with a reduced neck e at both ends and form the loop with round openingsf, adapted to receive the full-sized heads of the pin and communicating with downwardly-extending narrow slits g, adapted to receive the reduced necks of the pin, thereby locking the parts together in the well-known manner and permitting the dismounting without distorting any of the parts. The double-bearing scale-loop shown in-Fig. 8 has two bearing-blocks secured in the ends of two connecting-straps F in the same manner as described in connection with the singlebearing scale-loop.

In considering the merits of my invention it must be considered that the cost of the bearing-blocks forms a considerable item in the cost of scales, especially in platform-scales,

in which a number of such bearing-blocks are.

used, and as they are commonly agates the scale-maker has to buy them from the lapida'ry, who ordinarily produces them of the standard size and form, as represented by the part A of my block-bearing, (except as to the bevels ctk) but for some of the bearings-as, for instance, for scale-loops as at present constructed-this standard form is not available, some of them requiring either blocks of larger size or different form or provided with additional grooves or pin-holes, which not only considerably increases the cost of the agates, as they have to be especially cut, but also has other inconveniences, all of which is done away with in my construction, which makes the ordinary standard agate block-bearing available for every bearing of the scale, the beveling off of the agate-at the ends being a small matter which does not-necessarily require the lapidarys assistance.

As it is desirable to have the pivot-pin bear against the bearing-block, the holes in the easing should be made a little larger than the pivot-pins.

In using the word agate in the claims I mean to include in said term any other equivalent, such as hardened-steel blocks or other hard material from which such bearing-blocks might be formed, and the term block-bearing includes all bearings of the character of the'bearings B and C as well as bearings of the character shown in Fig. 10, which is a modification of Fig. 9 in so far that instead of forming or providing the bearing B with flanges b I place abearing 0 within the bearing B, which is an advantage in manufacturing.

Vhat I claim as my invention isp 1. The combination with a block-bearing inclosing the bearing-block in contact with the bottom and sides thereof and provided with retaining face portions, of a bearingblock seated in said block-bearing and composed of two parts, one an agate forming only the face portion of the block, the other forming a complementary-base portion of cheaper material being interposed between the bottom of the bearing and the agate to hold the agate in contact with the retaining face por tious of the bearing 2. The combination with a block-bearing inclosing the bearing-block in contact with the bottom and sides thereof and provided with retaining face portions for said bearingblock, of a bearing-block composed of two parts, one forming the face thereof being an agate and the other of cheaper material being interposed between the bottom of the bearing and the agate and forming a complementary base adapted to hold the agate in contact with the retaining face portion of the bearing, and means on said base whereby the independent endwise movement of said agate is prevented.

3. The combination with a support and.re.-. cess in said support forming a bearing for the bearing-block whereby said bearing-block is prevented from lateral and vertical movement in said hearing but is free tobe removed there-,

from endwise, a bearing-block seated in said bearing in contact with the inner faces thereof, said bearing-block composed of two parts, one of agate forming the face and the other of cheaper material forminga complementary base, means for interlocking said base with the bearing to prevent endwise displacement of said base in the bearing and means for interlocking said base with the agate to prevent the endwise displacement of said agate.

4. The combination with a support and a recess in said support forming a bearing for the bearing-block adapted to hold said bearing-block against lateral and vertical movement but free to be inserted and removed therefrom endwise, of a bearing-block seated in said bearing in contact with the, inner faces thereof and a pin passing transversely through the support and through the bearin g-block, said bearingblock composed of two,

parts, one forming the face portion and the other a complementary base portion through which the pin passes, the face portion being held from independent endwise displacement by means of projections on said base portion.

5. The combination with a block-bearing adapted to inclose the bearing-block upon three sides and partially upon the fourthto prevent the vertical displacement thereof, the ends being openand unobstructed to permit the endwise removal and insertio "of the block, of abearing-blockcomposegf a face portion of agate and a base portion cheaper material and adapted to hold the face portion from endwise movement in the healing independently thereof and means for removably holding the base. portion in the bearing against endwise displacement independently of the face portion of the block.

6. The combination with a block-bearing adapted to inclose the bearing-block upon three sides and partially'upon the fourth side to a sufficient extent to prevent vertical displacement of said bearing-block, the ends of the bearing being open andunobstructed for the free insertion and removal of said bearing-block, of a bearing-block composed of a face portion of agate and a base portion of cheaper material, said parts having interlocking meeting faces to prevent the endwise removal of either part separately and means applied to the base portion for holding it in position in the bearing against endwise movement.

7. The combination with a block-bearing inclosing the bearing-block upon three sides and partially upon the fourth side, of a bearing-block composed of a face portion of agate of standard size and form and a base portion of cheaper material and unitedly forming with the agate portion abearing-block adapted to be endwise inserted into said bearing and held therein against vertical displacement, and a locking-pin passing transversely through the base portion of the bearing-block and through the inclosing sides of the bearing and removably holding the bearing-block in position in the bearing against endwise displacement, the ends of the agate being beveled and the base provided with counterpart projections to engage therewith to prevent independent endwise movement of the agate in relation to the base.

8. In a scale-loop, the combination of a bearing-block composed of two parts, one of agate forming the face portion and one of cheaper material forming a complementary base portion, the agate having beveled ends and the base portion having counterpart projections to prevent relative endwise movement of the parts, a bearing inclosing said block upon three sides and partly upon the fourth side or face, the ends of the bearing being open and unobstructed to permit the insertion and removal of the bearing-block, a pivot-pin passing through said base portion and through the sides of the bearing and having reduced necks, and a supporting-loop detachably engaging with the ends of the pivotpin.

9. The combination with a block-bearing and block supported in said bearing, of a pivot-pin passing through said bearing and block, and provided with ends projecting beyond the walls of the bearing and formed with reduced necks, and a supporting-loop formed with apertures in the ends adapted to permit the passage of the pivot-pin therethrough and with oifsets communicating with said apertures and adapted to engage with the necks of the pivot-pin.

10. In a scale-bearing, a bearing-block composed of two parts, one part of agate forming the face portion of the block and the other of cheaper material and forming a complementary base portion thereof of the same horizontal dimensions as the face portion, the agate provided with bevels a and the base portion provided with counterpart raised lips a to interlock therewith, substantially as and for the purpose described.

11. The combination with a block-bearing,

of a bearing-block seated in said bearingin contact with the inner faces thereof, whereby said bearing-block is held against lateral and vertical movement in saidbearing but free to be removed endwise therefrom without distorting the bearing, of a bearing-block composed of two parts one forming the face of the block and the other forminga complementary base, said parts interlocking with each other, whereby the independent removal from the bearing of either the other is prevented.

12. The combination with a block-bearing, of a bearing-block-seated in said bearingin contact with the inner faces thereof, whereby said bearing-block is held against lateral and vertical movement in saidbearing but free to be removed therefrom endwise, of a bearing-block composed of two parts, one forming the face portion thereof andthe other forming a complementary base portion, said parts interlocking with each other whereby the endwise removal of one without the other is prevented, and a pin passing transversely through the block-bearing and through the base portion of the-bearing-block.

13. The combination with a block-bearing, of a bearing-block seated in said bearing in contact with the inner faces thereof, whereby said bearing-block is held against lateral and vertical movement in said hearing but free to be removed therefrom endwise, of a bearing-block composed of two interlocking parts, one forming the face portion of theblock and the other forming a complementary base portion, said portions interlocking to prevent the independent removal of either portion withoutthe other, a pin passing transversely through the block-bearing and the base portion of the bearing-block and having projecting ends formed with reduced necks and an open-ended supporting-loop engaging with the reduced necks and removably locking the pin in position in the loop.

14. The combination with a block-bearing adapted to hold the bearing-block in position against lateral and vertical movement, of a bearing-block seated in said bearing in contact with the inner faces thereof, said bearing-block composed of a face portion and of a complementary base portion interposed between said face portion and the bottom of the bearin g and adapted to interlockwith the face portion, a transverse groove in the under side of said base portion and a lockingpinpassing through said groove and the sides of the bearing and adapted to removably hold the bearing-block in position in the bearing.

In testimony whereof I affix my signature in presence of two witnesses.

GUSTAVUS A. N. WAHLEN.

Witnesses: I

Or'ro F. BARTHEL, JOSEPH A. N0ELKE.

port-ion without IIO

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