USRE2868E - Improvement in crank-pins and boxes for harvesters - Google Patents
Improvement in crank-pins and boxes for harvesters Download PDFInfo
- Publication number
- USRE2868E USRE2868E US RE2868 E USRE2868 E US RE2868E
- Authority
- US
- United States
- Prior art keywords
- crank
- pin
- parts
- oil
- box
- Prior art date
Links
- 241001124569 Lycaenidae Species 0.000 title 2
- 210000001503 Joints Anatomy 0.000 description 8
- 239000000428 dust Substances 0.000 description 6
- 230000000875 corresponding Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 240000002027 Ficus elastica Species 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001195 polyisoprene Polymers 0.000 description 2
- 230000003449 preventive Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Images
Definitions
- Figure l represents a longitudinal section through the box and crank-pin.
- Fig. 2 is a front elevation of the parts, with the upper serrated joints, J, of the pitman R shown in section.
- Fig. 3 is a detached face view of the joint-plate of either end of the connecting-rod.
- My invention is intended for and eiectnally obviates these difficulties, and is provided with a fountain, which, being filled with oil, steadily and constantly allows the pin to be lubricated. or an equivalent device, which prevents the leakage of unnecessary oil, and allows the fountain to be filled whenever so desired.
- the pin is also inclosed in the box in such a manner that oil can circulate around it, and grit and dust cannot enter, nor can any quantity of oil escape therefrom.
- the connection made between the cutter-bar and pitman is of such a nature that they can be adjusted easily and readily as the parts of the joint become worn by the operation ofthe machine.
- connection of the cutter-bar and pitman commonly known being formed by opening in the two, with a pin passing through them, is such a one that there is no means by which the wear caused by the friction of the two can be compensated for.
- joint employed in my invention it is only requisite to adjust the screw, which passes through or partially rlhis fountain has a suitable screw-cap y through the parts, so as to force the sections together.
- B represents a balance-wheel.
- C D represent the crank-pin and box.
- E represents the connecting-rod.
- F represents an end portion of the knife-bar.
- G represents an oil cup or reservoir
- H represents a tight cap over the end of the crankpin.
- the oil-reservoir G may be of any suitable form and secured to the crank-pin box'in any suitable position, so as to allow the oil to coinniunicate with the crank-pin C.
- the tight cap H being secured or otherwise attached to the end of the box, effectuall y prevents the escapement of oil at this part and keeps out dirt and grit.
- l1 ⁇ he projecting rim d of the wheel is provided iu part as au addition al preventive for the escape of oil, but more especially to prevent the ingress of dust and grit into the joint, also to strengthen the box.
- I J in Fig. 2 and 3 represent the male and female joints which are used for connecting the pitman to the cutterbar. These parts areshown more clearly where the 'connection is made between the pitmau and crank-pin box.
- the knife-head is provided with a socket, aud the pitman is provided with a suitable plate or projection for entering and filling within said socket, or vice versa.
- the parts of the joint f g are lmade spherical on the one and concave iu the other, or are made conical on the one and a corresponding socket in the other, or they may be made to connect together by a taper pin to a corresponding socket, all of which are substantially as represented, and accomplish the same ends in substantially the same manner.
- the main object is to connect the parts described by a joint having a bolt passing into or through them, so that as the operation of the machine wears the parts of the joints they may be readj usted together by tightening the bolt.
- the bolt which secures the parts of the joint may pass through both of said parts, or may he screwed into the one after having passed through the rst.
- Thisbolt I provide a Washer of any suitable material, and should the bolt not be used to pass through both parts of the joint the washer may or may not be placed under the head thereof.
- This Washer gives a greater bearing-surface to and prevents the holt from Working loose, as well as compressing thejoint. Leather, iron, india-rubber, or other similar substances generally used for Washers may be applied in this instance.
- crank-pin box or head,'D H of a harvcster, soconstructed with. reference to the crank-pin C that the outer end of said pin will be enveloped by the head D H, for the purposes -set forth.
Family
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