USRE11181E - perry - Google Patents
perry Download PDFInfo
- Publication number
- USRE11181E USRE11181E US RE11181 E USRE11181 E US RE11181E
- Authority
- US
- United States
- Prior art keywords
- mast
- lock
- pivoted
- posts
- derrick
- Prior art date
Links
- 235000020030 perry Nutrition 0.000 title description 4
- 238000005266 casting Methods 0.000 description 2
- 208000000682 Megaloblastic Anemia Diseases 0.000 description 1
- 101700065560 andI Proteins 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 235000021028 berry Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 101700049815 end4 Proteins 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002459 sustained Effects 0.000 description 1
Images
Definitions
- FIG. 5 is a'sectional plan showing the lock, lock-timbers, and sec- .tions of the fulcrurnposts cut off just above the lock-timbers.
- Fig. 6' is an enlarged plan of the mast-lock. Figui? is aside View of the lock-key enlarged.
- t. M is a rectangular mast pivoted neart'hc center of its length on'top of a supportingbase and carrying a windmill A at its upper 4o end.
- the rod or shaft R serves for transmitting the power of the Wind-wheel todriven machinery below.
- the pivot is formed by b olting to the front corner of the mast M a pivot-casting X with trunnions on opposite sides.
- the axis of the pivot is perpendicular to a plane 5 ⁇ o c ntaining the front corner of the mast a. u Alt'ersecting therght angle formed by the ,Letters -Patent of the* United States', No.A
- Neither tiefboardsn'or braces are admissible ⁇ between the rear posts G and Hlifs they would interfere with swinging'the mast from its vertical position about its'pivot, as required, for bringing the Wind-wheel down to the ground; but ou the' remaining three sides of the base the fnlcrumeposts may be tied together and braced at intervals, as desirecl,-sinoe the wind-wheel can be brought down to the ground by tilting the mast, as indlcated by the dotted lines in Figl, whereit will be noticed'that the position of the tilted mast does not interfere wth'unitingthe front' v Iulcrum-posts Gand H by bracing or boarding from topV to bottom.
- rIhc two lock-timbers N N, fastened together at their intersection, inconjunction with the three tieboards OO O make it unnecessar to unite Vthe posts G and H with a fourth tie-board.
- the mast-lock consists of a stop Il, bolted securely to both lock-timbers NN at their intersection, and a clamp L', hinged. at one end to one side o'f the stop L, while the other end of the clamp is slotted to receive the projecting end of the other side of the stop, also slotted to receive a wedge-shaped keyl back ofthe clamp to hold it pressed against the back corner of the mast when inclosed by the lock.
- the stop L is provided with two faces, which restagainst the two adjacent front sides ofthe mast, leaving a clear space around the front cornerof themast for the uninterrupted passage of the shaft R.
- braces I To en the pivoted mast M, two sets of braces I) land Dare applied to the two adjacent rear faces, so thatthe bracingstands out from the mast in two directions at right angles with. each other, as shown in Fig. 4, where it will be seen that a vertical projection ot the mast with its two sets of bracing just fitsthe angle formed between the vertical projections of the fulcrum-posts G and IVI.
- the braces D form a triangle with the mast M, as a base, to which they are directly joined at their outer ends at some distance from each endzof the mast, so that they may not interfere with the wind-wheel at the top and may leave room for attaching thev counter-weight and mastlock at the bottom.
- braces D At the apex of the braces D their inner ends are joined securely together, and are also connected by a rigid tiebar Y to the mast.
- the mast is a common member of two trusses, which hold it from bending under strains applied from any direction.
- the tie-bars Y and Y should take hold of the mast at or near the pivotcasting X.
- a mast trussed in this way need not be rigid in itself where it joins the pivotcasting X, but maybe made of two pieces simply tied together by spiking two pieces of plank V and Y across the joint.
- a counterweight Vv' is attached to the foot of the mast, and is made to project some distance in front of thinnest-pivot, so to counterbalance the weight of the trusses behind the pivot.
- the mast pivoted intermediate adapted to swing in a Vertical plane 'between them and between the said two supports and extending both above and below the said ful' rs1- its ends on said two fulcrums, whereby it is crnm, the base formed by saidtwozsilppmfta,I
- a pivoted mast pivot substantially as herein set TOO IGS
- a mast-locksup-A pivoted mast stitened by two pairs of trusses stiened by two pairs of trusses projectingv -from the sides thereof ,in -two directions at right angles with eachother and at the saine time in directions oblique. with reference to thepivoted axis of saidmast, in combination with two supporting-fulcrums; between which ported between sadfulcrums, whereby said mast may be-secured in -vertical' position-or released to swing on its pivot, substantially as and for the purpose setforth. 7, In a windmill-derrick, 'rn combination, a
- the lock-timbers ⁇ N N uniting diagonallyfoppo'site ulcrlum-posts 10. .in combination with ,the pivoted mast Gl H and G H, in combination with a mast- 3o lock L L l, secured ⁇ to said lock-timbers at their'pointof intersection with each other, substantially as andfor the purpose vset forth.
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