Abstract: A railcar ballast delivery gate with first and second parallel side walls spaced apart by a center truss plate that extends between and is perpendicular to each of the two side walls, a center angled bar that straddles the center truss plate, first and second primary elongated tubes extending between the first and second side walls on opposing sides of the side walls, and a divider assembly. The primary elongated tubes are rotatably connected to first and second tube arms, which in turn are fixedly couple to first and second secondary elongated tubes that are configured to move relative to the primary elongated tubes while remaining parallel to them. The tube arms are rotatably connected to door linkages that are situated underneath and fixedly attached to door panels resting on trusses that extend from a center truss plate.

Abstract: A railcar ballast delivery gate with first and second parallel side walls spaced apart by a center truss plate that extends between and is perpendicular to each of the two side walls, a center angled bar that straddles the center truss plate, first and second primary elongated tubes extending between the first and second side walls on opposing sides of the side walls, and a divider assembly. The primary elongated tubes are rotatably connected to first and second tube arms, which in turn are fixedly couple to first and second secondary elongated tubes that are configured to move relative to the primary elongated tubes while remaining parallel to them. The tube arms are rotatably connected to door linkages that are situated underneath and fixedly attached to door panels resting on trusses that extend from a center truss plate.

Abstract: In some examples, method includes, in response to receiving an initial user input that causes a builder computing system to compile a set of source code into a set of compiled targets of an application package that implements an application, deploying the application package to initiate execution of the application, wherein a subset of the set of source code is compiled into an initial subset of the set of compiled targets; after modification to at least the subset of the set of source code, receiving a subsequent user input that causes the builder computing system to compile at least the subset of the set of source code into an updated subset of the set of compiled targets; and deploying the updated subset to update the application based on the updated subset without sending another application package that includes the updated subset.

Abstract: In some examples, a method includes, in response to receiving an initial user input that causes a builder computing system to assemble a set of resources into a set of uncompiled targets of an application package that implements an application, deploying the application package to initiate execution of the application, wherein the set of uncompiled targets includes a subset of the set of resources; after modification to at least the subset of the set of resources, receiving a subsequent user input that causes the builder computing system to assemble an updated subset of the set of resources that are based on the subset of the set of resources; and deploying the updated subset of the set of resources to update the application based on the updated subset without sending another application package that includes the updated subset of the set of resources.

Abstract: In some examples, method includes, in response to receiving an initial user input that causes a builder computing system to compile a set of source code for an application into a set of compiled targets, deploying the set of compiled targets to initiate execution of the application, wherein a subset of the set of source code is compiled into an initial subset of the set of compiled targets; after modification to at least the subset of the set of source code, receiving a subsequent user input that causes the builder computing system to compile at least the subset of the set of source code into an updated subset of the set of compiled targets; and in response to determining that the updated subset differs from the initial subset, deploying the updated subset to update the application based on the updated subset without terminating execution of the application.

Abstract: An air-to-hydraulic fluid pressure amplifier comprising an air cylinder having an internal reciprocating air piston; a first hydraulic cylinder having a first valve fitting and a first internal hydraulic ram that is slidably positioned within the first hydraulic cylinder; a second hydraulic cylinder having a second valve fitting and a second internal hydraulic ram that is slidably positioned within the second hydraulic cylinder; a first flow control valve and a second flow control valve; a first plunger-operated pilot valve and a second plunger-operated pilot valve. Each of the first and second plunger-operated pilot valves comprises an inlet port, an outlet port, a plunger, a barrel, and a compression spring.

Abstract: In some examples, a method includes, in response to receiving an initial user input that causes a builder computing system to assemble a set of resources into a set of uncompiled targets of an application package that implements an application, deploying the application package to initiate execution of the application, wherein the set of uncompiled targets includes a subset of the set of resources; after modification to at least the subset of the set of resources, receiving a subsequent user input that causes the builder computing system to assemble an updated subset of the set of resources that are based on the subset of the set of resources; and deploying the updated subset of the set of resources to update the application based on the updated subset without sending another application package that includes the updated subset of the set of resources.

Abstract: In some examples, method includes, in response to receiving an initial user input that causes a builder computing system to compile a set of source code into a set of compiled targets of an application package that implements an application, deploying the application package to initiate execution of the application, wherein a subset of the set of source code is compiled into an initial subset of the set of compiled targets; after modification to at least the subset of the set of source code, receiving a subsequent user input that causes the builder computing system to compile at least the subset of the set of source code into an updated subset of the set of compiled targets; and deploying the updated subset to update the application based on the updated subset without sending another application package that includes the updated subset.

Abstract: In some examples, method includes, in response to receiving an initial user input that causes a builder computing system to compile a set of source code for an application into a set of compiled targets, deploying the set of compiled targets to initiate execution of the application, wherein a subset of the set of source code is compiled into an initial subset of the set of compiled targets; after modification to at least the subset of the set of source code, receiving a subsequent user input that causes the builder computing system to compile at least the subset of the set of source code into an updated subset of the set of compiled targets; and in response to determining that the updated subset differs from the initial subset, deploying the updated subset to update the application based on the updated subset without terminating execution of the application.

Abstract: An air-to-hydraulic fluid pressure amplifier comprising an air cylinder having an internal reciprocating air piston; a first hydraulic cylinder having a first valve fitting and a first internal hydraulic ram that is slidably positioned within the first hydraulic cylinder; a second hydraulic cylinder having a second valve fitting and a second internal hydraulic ram that is slidably positioned within the second hydraulic cylinder; a first flow control valve and a second flow control valve; a first plunger-operated pilot valve and a second plunger-operated pilot valve. Each of the first and second plunger-operated pilot valves comprises an inlet port, an outlet port, a plunger, a barrel, and a compression spring.