US39778A - Improvement in machines for making horseshoes - Google Patents

Description

2 Sh'eetsfSheet 1. A. J.`ROBERTS. 'HORSESHOE MACHINE.

2 sheetsksheet 2.

A-. J. ROBERTS.- HoRsBsHoE MACHINE.

Paftdnted Sept. 1, 1863.

"UNITED STATES .PATEIWI OFFICE.

ANDREW J."ROBERTS, OF BOSTON, ASSIGNOR TO BENJAMIN OF DORCHESTER, MASSACHUSETTS. Y

IMPROVEMENT INl MACHINES FORv MKINGMHORSESHOES.`

Speclicati'on forming part o`-`Letters Patent No. 39,778, dated September 1. 1863.

To all whom it may concern:

Be it known that I, ANDREW. J. ROBERTS,

,of Boston, in the county ot Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Machines for Manufacturing Horseshoes; andI do hereby declare thatthe following description, taken in connection with the accompanying drawings, herein-after referrcd'to, forms a full and exact specication of the same, wherein I haveset ,forth thenature and principles of my said improvements by which my invention may be distinguished from all others of a similar class,

together with such parts as I claim and desire Y have secured to me by Letters Patent. The present invention relates to certain new and useful improvements in machines for.

at the same timenarrow its `points as desired, whereby a perfect shaped shoe is readily profduced.

Secondly. In the use of a heavyweight or drop, moving between and guided by vertical bars or standards of the machine, for the purpose of actuating the formersorbenders, and thus pressing the metallic bar around the mold-block used, the said weight being connected with the said formers in such a man` 11er, by means ot' any suitable arrangement of l mechanical devices, as to cause them. to be moved in a direction toward the mold-block by its simple downward movements orial'l. On the lower surface of this-weight alip or projection is placed in proper position, as the said weight falls, to strike against and bend thepoints ot' the metallic bar or shoeto form the calksl Thirdly. In grooving the shoe by means of devices `so arranged and operated by the movements of the sliding formers as to force the punches used up against the under surface of the shoe, and there firmly hold the. same in readiness to act upon the shoe when the weight drops and strikes against the 4top surface of theshoe.

' Fourthly. In allowing the Weight to drop, when it shall' havereached the height from which it is to fall, by means of a peculiar arrangement ot mechanical devices operated by the upward Vmovement of `the weight in such a manner as to disconnect at the proper moment the devices employed for the raising of the same. o

Fifthly. In apeculiar arrangement of mechanical devices so operated by the downward movement of the weight as to reconnectand again place in readiness the devices employed for the raising of the weight.

I'have also made several other improvements in the construction and arrangement of horseshoe-machines that are quite essential to the more perfect working of the same, and which will be hereinafter particularly referred to.

In the accompanying plates of drawings my improvements 'are represented, of which, in Plate 1, Figure 1 is a plan or top view; Fig.

2, a side view 5 Fig. 3, a central longitudinal vertical section Fig. 4, a transverse horizontal section; Fig. 5, a transverse vertical section through the center of the drop-weight, and Figs. 6 and 9 are detailviews, to be hereinafter more particularly Jef @tred to. Plate 2, Fig. 7 is a centrall( ngiudinal vertical section with the weight in its lowest position, and Fig. 8 a transverse horizontal section through the center of the weight.

a a in the accompanying drawings represent the platform or foundation-plate of lthe machine, in which, at or near its center, is inserted a stationary mold-block, b, with its periphery made of the shape ofthe inside edge of a shoe. In the upper surface ot'- the platform atw ways or grooves, c c, are formed at an acute angle to each other, with the apex toward the moldblock. and in each of which an arm or plate, d, of two sliding horizontal formers or benders, e e, is inserted andmade to move for! ward and back on the plane f by means of a peculiar arrangement of mechanical devices, to be herein described. The inside edge ot' each of these arms d is cut or curved out at g corresponding tothe curved periphery ofthe Inf moldblock, and each one has also attached to the same two pressure-rollers, h and e', one upon the inside edge and the other set in its lower surface, the two being so arranged with regard to eachother that, as the said formers are moved forward, the one, h, will bear and travel upon the upper surface ofthe metallic bar of which the shoe is made, and thus prevent the saine from bein g forced up olfits plane or seat, While the other, t', presses against its edge in such a manner as to gradually bend or form the bar around the mold-hloek, thereby giving to the bar the desired curvilinear shape for a shoe, as is apparent without further description. But as it is desired to lessen the width of the shoe gradually at or near its points, the periphery of the mold-block b is therefore so formed at the places where the points of the shoebar are pressed against it that the dis tance between its periphery and the pressureroller ishall be sniiiciently decreased so that the roller fi shall not only operate to bend the bar, but also to press the salnein such amanner as toaccomplish the desired result.

j, Figs. 9 and 3, is a slotiiu the platform a for the insertion of the metallic bar within the same, and in its proper position against the point 7c of the mold-block, where it is securely held and prevented from wa-bhliug or moving during the bending operation by simply holding the plate or bar l, hinged to a sliding plate, m, of theplatform, down upon the slime, through the treadlev or lever fn, and connectin g cord or rod o. I

p p are two bars or arms attached by a pivot to the end q of each ot the arms d d, the opposite ends r of the same being secured together upon a common center or bolt, and then both attached to the upper surface 'of a horizontal sliding plate, s, moving in a groove, t, of the platform a. The t'ormers e, e` being thus arranged and secured to each other, and to the'sliding plate s, as described, a reciproeating rectilinear motion is imparted to the same in order to bend the metallic bar prop,-

erly inserted an'd held on the platforma, and to the object and advantage of which method ofl securing the cam-.rod u to theplate s is lo prevent the liability of too much strain upon the f ysaid plate s when moved, which would neces'- sarily tend to lthrow it ont ot' place as it is moving forward to operate the benders toward the mold-block, and to form thereby the shoe; but, however, it is evident that in lieu thereof it (the vertical lever) could be attached directly to the said sliding plate s. Upon .the edge a of this cam-lever u bears or travels a friction-wheel, b', attached to a heavy dropweight., c', in one side of which the said wheel is inserted having proper bearings. This weight c moves between and is guided by two vertical bars or standards, d d', situated, respectively, on opposite sides ot' the platform a, and also has secured to its under surface, or

forming a part thereof, a projecting plate, e',

of the same shape, but ot' little larger dimensions, than the mold-block b, the said plate e' having upon its lower surfacearaised bead, f and a vertical lip or projection, g, at one end thereof, for purposes to be described.

In 'order to raise the weight or drop c', and thus place it in readiness to accomplish the purpose for which it is specially intended-i. e., the operation of the machinery for bending,

8vo., the shoe-I have attached to the rod h',

secured in the top'portion thereof, a rope, di', or other suitable device,that is passed upward over a druimj, having bearings in the upper frame work, a', ofthe machine, and upon which the rope is wound.v 0n one end of this drum 7" is a gear-Wheel, k', engaging with a toothed pinion, I, of the driving-shaft m' ofthe machine, to which shaft motion maybe imparted by any of the well-known modes. When the weight c has been raised to thedesired height, the gear-wheel 7c and toothed pinion l', above described for theraising of the same, are-disconnected, as will be presently set forth, and the drum j', being thus free to turn, allows the weight c to drop or fall, guided by the standards d d/las it falls, and by means of its bearing upon the edge of the cam lever u, through the friction-wheel b', turns the lever u upon its t'ulcrum, and thereby imparts a forward movementy to the formers or benders e e towardthe stationary moldblock b. This forward movement of the benders, caused by the descent ofthe weight, continues until the wheel b has reached the point mf 'of the cams surface, when it ceases,

'because of the peculiar formation of the camlever, and the formers e e are held stationary as the weight c falls with its full force and all 4its accumulated power upon the upper surface of the metallic bar previously bent around the mold-block bythe benders ce. 'lhe drop c', after having fallen, and consequently formed the metallic bar intola shoe, is again raised'by means of the drum j', the gear of which has anda new. bar.jnserted thereins Attached to the lever-cam u is a spiral pr keep up against the friction-wheel of the weight. Inserted within the platform a of the machine. unon each side of the mold-block b and manner.

inthei proper positiomare vertical puncheso" or', Fig. Gthe lower ends ot' which respect- ...ively rest `upon beveled pieces or levers p' p',

Vtoward the mold-block b the one ,q,by sliding under the other,p, shall so raise the. latter, and

' t consequently the punches o' o', as to cause the latter to impinge against the metallicbarbent around the mold-blotk-and, being securely held there,`\are'forced by the pressure .and force of the drop upon the-shoe to sumciently penetrate the same, and thereby form the groove or slot usually made therein, the punches -o' o being retracted by the spiral springr, attached to the same, as the formers or benders e e move back to their original position, as has been described. The weight c also in dropping, by means of its projecting lip g', bends or turns down the points of the shoe-a sufficient distance. to form the desired calks, and, furthermore, bevels its surface correspondingly witht-he projection f of the weight, the object ot' which is to cause the shoe where placed upon the horses hoofto bear only upon its outside edge.

From the abovedescription.itvwillheseen. that by the falling of the weight or drop c', arranged, constructed, and operating substantally as'described, a shoe is instantaneously formed, and that also by the use of a weight for operating the mechanism employed for the formation of horseshoes a great amount of power, force, or pressure is easily obtained, and a quick formation ot' horseshoes in every particular practically and successfully obtained, I

In order to allow of the devices employed for the raising of the weight to be disconnected at the proper moment, whereby the weight will be left free to fall, the drivingshaft m is made in two distinct portions, s t', attached together by a universal joint, u', the end e' ot' the portion t thereof,and to which the pinion L', above referred to, is secured, having its bearing within a vertical swinging frame, w', hinged at m', a spring-catch, y', serving to hold the said frame w in proper position to engage the pinion Z' with gear lc'.--`

Placed within a groove, z', of one ofthe standards d is a vertical sliding bar, A, the upper end of which is secured to the sprin g-catch y', while the other end is caught by the' weight as itrises,

'thus disconnecting the catch y from the swinging frame wi, whereby, from the action of the spiral spring' B nprn the frame w', the pinion and gear are instantly disconnected, the universal joint, as is evident without further description, permitting the same. The pinion l and gear k', after being thus disconnected, and

the weight c having fallen, are then recon-V nected in order that they may again operate tomaise the said'weight by means ot the following devices,jviz: (l is a vertical rod, moving in agroove ofthe standard d, and placed behind the vertical sliding bar lrereinbeforc referred to; D, a triangular lever or arm turning at its angle upon a center or fulcrum, E, and-attached at the end of each of its arms, F and. G, respectively, to the swinging frame w,and the upper end of the vertical rod (l.

. This vertical rod() extends down the standard d of the platform a to av point nearly to the upper plane thereof, and is so arranged upon the said standard, and susceptible of vertical play or motion, that the weight, when falling, shall pull or draw upon the same, and thereby, through the 'right-angular lever D 'attached thereto and to the swinging frame as above described,'turn the said frame sufficiently to re-engage the pinion l with the gear it', where .they are again held by the springcatch y'.,previously referred to. Thus it willbe seen from the above. description that the weight or drop c not only operates the mechanism employed for bending and forming the shoe, but also renders the machine in reality a self-acting one, the ad' vantages of which are readily apparent and need thereforeno further particular allusion thereto. employed for disconnecting and `connecting the mechanism for raising the weight can be made susceptible of easy adjustment'at pleasure, thus readily allowing of a greater or lesser amount of vertical travel to the weight, and

whereby any desired amount of pressure may be secured upon the metallic bar` of whichthe horseshoe is for ed. Y r

Having thus described my'improvements, I shall state my claims as follows:

1. Operating the various mechanical devices employed in machines for making horse shoes by means ofthe vertical or up-and-down movement of a heavy drop-hammer. d

2.v Bending the points of the shoe to form the calks` by means ot' the lip projection Yg upon the under surface of the drop-weight, arranged and operating substantially as set forth.m d

'3. The arrangement of the vertical camlever lLasliding plate s, andarms p p, attached to the arms d d ot' the formers e e, in combination with the drop-Weight, the whole operating together inthe manner described, :and for'the purposes set forth.

4. Thev use of the beveled piece q', at-

tached tothe sliding formers or benders e e,

and beveled piece p', upon which the punches o o rest, the two being so arranged with' regard to each other as to raise or lower thesaid punches, substantially in the manner and for the purpose described. l

5. Disconnecting the devices employed for 'raising the drop-weight by means of the vertical rod A, spring lever-catch i and vertical swinging lever zo', that forms the bearing for one end of the driving-shaft, arranged and aperating as set forth.

It is also evident that the devices G1 The ineens described for reconnecting t'ie (leviers employed for the raising of the weight after the same has fallen, the same eonsistin.; of' the vertical' rod 0 and angular swinging arrn or lever D, turning upon ai ful- Crum7 arranged and operating substantially as hereinabove described.

7. The combination of the two-part driving# shaft m', attached together as described, with the swinging lever u, and spring-catch 1 op`

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