US850508A - Weighing-scale. - Google Patents

Description

PATENTED APR. 16, 1907.

G. WALKER. WEIGHING SCALE. APPLICATION rum) SEPT. 17. 1906.

- a SHEETS-SHEET 1.

XQQW PATENSBDAPEJGJQOVQ WEEGHING SCALE.

APPLIGATION FILED {*EPT.17.1906.

3 SHEETSSHEET Z.

N0; 850,508. PATENTED APR. 16, 1907.

G. WALKER.

WBIGHING SCALE. APPLIOATION FILED SEPT. 17. 1901 3 SHBETS-SHEET 3.

' a broken-out front elevation of my scale front edges of the sides and top are provided ward the top in order to give the front the UNITED STATES PATENT OFFICE.

GEORGE \VALKER, OF NEW BRITAIN, CONi EC'lICU'l, ASSIGNOR TO LAN- DERS, FRARY ANT) CLARK, OF NEW BRITAIN, CONNECTICUT, A CORPO- RATION.

WElGHlNG-SCALE.

No. 850,508. Specification of Letters Patent. Patented April 16, 1907.

Application filed September 17, 1906. Serial No. 335,000.

inciined position best shown in Fig. 2. This. front, which is also of sheet metal, is substantially of a circular form with a downwardly extended projection 16, the lower edge 0 1'0 (1, lUl l/U'lll. i'/ may (on/err..-

Be it known that I, GEORGE WALKER, a citizen of the United States, residing at 1 New Britain, in the county of Hartford and i State of Connecticut, have invented certain i which is provided with integral lugs 17, that new and useful Improvements in \Veighingpass through perforations in the base and are Scales, of which the following is a specificaclenched on the underside thereof, as shown, tion. i for or e of the said lugs in Fig- 2. The lugs 13 My invention relates to improvements in l and 14 pass through the perforations 15 in the weighing-scales; and the objects of my imfront I) and are clenched or bent overon the provcment are to produce a spring-scale of l outside of the front, as shown in Fig. 1. The the racleand-pinioh class that is provided circular edge of the front B is provided with. a with an inclined dial, to )roduce the same i forwardlyrojectingilange 18 to receive and by a simple and economical construction, and hold the edge of the dial- 19. The said front to produce a scale of this class that is cllicient is also provided with two openings 20 and 21 and accurate in operation. with a bar 2'2 between them. This bar is In the accompanying draWings Figure 1 is y centrallyperforated, as at 23, Fig. 1, to receive the. inner end of the pinion and pointer shaft .24. A portion of the metal cut from with the pinion-shaftand one of the dialthe front to form the opening 21 is turned holding screws in section. Fig. 2 is a sectional View of the same on the line a: 00 of Fig. back in the rear of the central perforation 23 1 with some of the central parts in side eleto form a step 25. for the pinion and ointer shaft 24, as shown in Flg. 1. The pinion and pointer shaft 24 has one of its bearings in the central part of the dial 19. The pinion 26 may be formed integral with or rigidly mounted upon the shaft 24. This shaft is passed through the center of the dial with the pinion on the back of the dial, and then the vat-ion. Fig. 3 is a sectional front view of the same on the line 3 q of Fig. 2. Fig. 4 is a front view of the main frame, together with a sectional view on the line 2 2 of Fig. 2 of the swinging frame and lover. ig. 5 is a section al plan of the principal parts less the case,

latform, pointer, and pinion.

The base A is struck up of sheet metal with a flange (5, the said base being perforated at l suitable points for the of the dial, as shown in Fig. 2, whereby the said pinion, shaft, and pointer are mounted or). the

reception of fasteningdial and may be removed.- therewith.- The lugs on the other parts of the case, hereinafter described. The sides 7 7 and top 8 of the dial is merely seated inside the circular flange case are made of one piece of sheet metal bent 18 on the front and is detachably secured in substantially into the form of an inverted U, lace by the screws 28, the said screws enter the rounding part constituting the top. The ing threaded holes in the metal of the front B. All of the other parts excepting the upper end of the spring 29 and mounted directly or indirectly on. the mam frame C. This frame in front view or rear view is substantially of the the case, as shown in Figs. 3 and a vithin which case it .fits snugly and to which it is rigidly secured, preferably by fourscrews 30, passing through holes in t e metal. of the case into threaded holes in the sides of the said frame. This frame is set a little distance from the flange 10. at the re so as to with integral lugs 13 and 14, that are received (slide the back 11 up into lace from the hotin and pass through erforations 15 in the to'mbefore the sides and rent are secured to front B. The front e ges of the sides 7 7 are the base A. A swinging frame 51 is pivoted slanted baekwardly from near their, base toby its rear end within the u per part of the main frame C by means of t e pintle 32. A.

sides 7 7 each have fastening-lugs 9 projecting from their lower edge, which lugs after passing through perforations in the'lase are clenched or bent over 'to'hoid the si es andv base together, as shown in Figs. 2 and 3. The rear edges of the sides and top are turned over inwardly to form a flange 10, that covi ers the top and side edges of the back 11, while the lower edge of the said back is provided with lugs 12, that pass into or through suitable perforations in the base A. The l pointer 27 is secured to its outer end in front its connections are i same contour as 4 lever 33 is pivoted by its rear end within the frame near its base by means of the pintle 34, The load-receiving bar or frame 35 1s :nohnted in an upright position, so asto reciprecate substantially in a vertical plane by being pivoted to the front end of the swinging frame 31 bythe pintle 37 and pivoted by its lower end "on' the' pintle 36 to the middle portion of the lever 33. The rear side of the bar to or frame 35 is provided with a braeket arnr 38, by which the lower end of the balancespring 29 is secured through its ordinaryhook 39. The upper end of the spring is secured to an ordinary flanged block 40, from the! center of which a threaded rod 49 ex tends up throug'ha hole in the top 8 of the case and receivesan adjus'tingnut 41, that bears on the said top. A platform or loadsupp'ort 42 is rigidly mounted on the upper go end of the'bar or frame 35. The forward part of the raclccarrying lever 33. has an upwardly-extended arm 43, to 1 the front of which the rack 44 is pivoted by its up 'er end on the screw 45. The T210151 is '25 curve flatwise from end toend, on a curve of which the pintle 34 of the lever '33 is the center, and its toothed edge engages the pinion 26. Its lower end rests upon and is snpported by the front end 46 of the lever A.- 5 ring 47 on the arm 43 bears upon a lat era projection 48 on the rack with a constant tendency to force the rack toward the pinion. The openings 20 and 21 in the front B permit the rack to reciprocate by the side of the pinion which is forward of the front B,

while the ends of the rack are supported by the oscillating lever, which is mainly in the rear of the said front.

The operation in general is the same as in 4 2 other 8 ring-scales of the rack-and-pinion class.' he special construction of the case,

' the main frame, and connected parts enables the parts that go within the case to be first finounted on thermain frame C, then placed within and secured to the body of the case by means of the said frame, after which the base A is secured to the said body. The dial with the polpter, shaft, and pinion can be secured first by means of the left-handwsneof the 50 screws 28. The rack is then free to swing back and let thepinion slip out of gear, so that the pointer may be turned. to zero on the dial, no matter what its position was when the dial was first put on.- After the onset the fastening-screws 28 is inserted, the saidscrew beinglocated to the right' of the pinion26. The width of the rack is so prortioned tothe space between the pinion 'd'. this screw that the rack may move 'elf, between them, while at thesame time ithe'f screw will prevent the rack from swinging away from the pinion far enough to be out of proper engagement therewith. This feature is a. great convenience in the manupointer is in proper position the right-hand the platform the load placed. Several prior patents showkseales with an inclined dial, and one prior scale with such a dial has been found. to indicate diilercnt weight when a given-load. was placed on the front part of the platform from that indicated when the same load was placed centrally thereon. I i

I. claim as my invention-- 1. In. a weighing-scale, the combination of a case with a load-receiving bar or frame, the raclccarrying lever and swinging, frame piv otally mounted in the case by their rear ends and also pivotally connected with the said load-receiving bar or frame, a spring connected with the said load-receiving bar or frame acting in opposition to the load on the said J, a rack carried by the forward part of the said racleearrying lever with a portion of the said rack forward of the front of the case, the said front having a central portion with a bearing ior a shaft therein, a detachable dial secured on the front of the said case and havthe said dial to be removed tlnxrewitln and/to be placed in position with the inner end of the said shaft in'the shaft-bearing of the said central portion of the front and with the pinion in engagement with the said rack.

2. In a weighing-scale, the mimliination of a case having an. inclined front, with the rackcarrying lover of the weighing mechanism. pivotally mounted wi thin the said case with its forward part arranged to s mg vertically, an upwardly-projecting arm at the forward part of the said lever, a rack pivoted by its upper end to said arm with a portion of the said rack forward of the-central portion of the case-front, and a shaft, pinion, and pointer, with the pinion in engagement with thesaid rack on the outside of the for- .ward of the said inclined front. 7

3. In a weigl'ling-scale, the combination of a casehaving an inclined front with the rack-- carrying lever of the weighing melrhaui m pivotally nounted within the said case ll/ll its for; ard part arranged to swing vertically,

ing shaft, pointer and. pinion, mounted on- :an upwardly-projecting arm at the forward eats thesame no matter uponwhat part of pinion. mounted with the said.

aswsoe pivotally mounted within the said ease with its forward part arranged to swing vertieally, an upwardly-projeating arm at the forward part of the said lever, aplate-like rack pivoted by its upper end to saidarin and enrved llatwise from end to end to conform to the are of a circle described by the front end of the said upwardlyprojeeting arm, and arotary shalt. pointer, and pinion mounted with its pinion in. engagement with the said rank.

5. in a weighing-scale, the combination of at ease having an inclined front with. the racl carrying lever of the weighing ineehanisn'i pivotally mounted within the said ease with its forward part arranged to swing vertically, an npwardiy-rroieeting arm at the forward part ol the said lever, a. reek pivoted by its upper end to said a-rz'n on an axis at a right angle to the '7 ol' the said lever and with a portion of the said rank forward of the central portion of the easedront, a dial detachably mounted on the said ease-front, a rotary shaft, pointer, and pinion mounted on the said dial to he removed ti'ierowith, and to he placed in. position with the inner end of the said shaft having a hearing in the central portion of the case front while the pinion i:-; in enga 'einent with the said rack, and a tening; new for the dial located to one side of the pinion \rithfthe bed of the rack pa e ing i'lll'OlfQii the .snaee i L.1'\.((i1 the Said screw and pinion.

(i. in a Plgiliig i-a-lo, the eonihinaiim of a hast- 3th the u so, sides and ion in one piere with ihenieoir d e portion oi 2; which piece forms the lot: with a flange at the rear edge, a soparately-l oriLed easwlront 30- cnrod to the front edge of the Said sides and top, a. Sena-rmlily-formed main frame the weighing mechanism with the major part thereof mounted on the said frame, the said l'raine hoin r secured within the rear part of the ease ith a spat-e heiwoen it and the roar flange oi the sides and top, and alacl; Hiipl'itd in from lielon into the space l'OUHLH the i said flange and frame, the said sides, 'l'ront and hark l'einp; mounted on the top of and secured to the Said lane.

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