Abstract: Hydraulic and pneumatic motors having expansion chambers arranged between two supporting means, at least one of which is rotatable, said chambers formed at least in part of material that is elastically deformable by the pressure medium used, are provided. The invention also provides a control system for introducing the pressure medium into the chambers sequentially and expelling it sequentially after each chamber has attained maximum volume.

Abstract: The throttle of an engine is controlled to maintain its speed substantially constant in spite of variations of load upon it. The illustrated load comprises hydraulically operated equipment in a hydraulic system powered by a pump driven by the engine. Throttle control mechanism comprises a pair of cylinders supplied from fluid pressure in the hydraulic system. Pistons in the respective cylinders are connected by pivots with a control arm linked to the throttle control. When equipment is hydraulically operated from the hydraulic system, the fluid back pressure against the pump increases, this back pressure being greater the greater the hydraulic load. The increased load on the engine from the pump would slow the engine down if its throttle opening were to remain at its original setting.

Abstract: In an hydraulic actuating assembly for a vehicle shoe-drum brake comprising first and second relatively slidable members, the first member is provided with a longitudinally extending bore which is closed at one end and in which works a portion of the second member, and a sealed hydraulic chamber is defined within the bore between the closed end of the first member and the second member. One of the members incorporates an inlet port for the chamber and a vent port is located in a portion of the wall of that member to provide an indication, by external leakage of hydraulic fluid, of failure of the sealing of the chamber.

Abstract: In bag making, a web of sealable material is wrapped around a forming tube of rectangular cross section, the adjoining edges of the web are bonded to one another to form a hose, a transversal seam is provided to form a hose bottom continuing in ears, drawing the hose off the forming tube in the direction of its length by grasping solely the hose ears and transversely severing the hose below the forming tube for obtaining an individual bag.

Abstract: A box forming machine for semi-automatic fabrication of limited production runs of boxes from a flat box blank. The machine provides a glue applying system and a pressure applying system arranged for access and use from the same side of the machine. The glue applying system includes a reservoir and glue roller and the pressure applying section includes a fixed plate and a movable plate, with the fixed plate shaped to accept box blanks of various sizes.

Abstract: A waterproof corrugated board construction for use in the Hydro-cooling process for preparation of produce and/or fruit shipped in a container formed of the corrugated board. The box construction using the corrugated board comprises a combination of a corrugated sheet having attached to the crest of the corrugation at least one substantially flat waterproof lining with the construction also containing a coating of a deformable water-proofcomposition and having the edges of the corrugated sheet compessed and retained by the action of the deformable composition in an amount sufficient to seal the edges from entry of water during the Hydro-coolng process.Also disclosed is a method for providing a liquid sealed box from the corrugated board construction. In addition, there is disclosed an improved cutting die for use in forming the waterproof box blank described herein.

Abstract: To protect electronic components located within a housing structure, or casing, which contains ventilation openings, against corrosion due to intrusion of water, for example being sprayed thereon upon cleaning of the area on which the structure is mounted, the housing is formed with an attachment surface having ventilation ducts formed therein which are generally Y-shaped having two branch ducts terminating at the outside of the housing in spaced position, and forming an angle with respect to each other, for example terminating at essentially right angled housing edges, and a third trunk duct connected to the interior of the housing, and branching off from the two branch ducts, so that water sprayed against the housing may run through the branch ducts, without impingement on a back wall, and ventilation is provided by additional movement of air through the trunk of the Y-shaped duct; the ducts are preferably mounted with respect to the housing in such a manner that any liquid which might accumulate within the

Abstract: An air deflection structure for sliding roofs of motor vehicles which is constituted by an air foil profile pivotally arranged underneath the sliding roof in the vehicle cross direction within the forward area of the sliding roof; the air foil profile extends in its pivoted-up operating position under a negative angle of attack of about 5.degree. to about 30.degree. and projects only slightly beyond the roof contour in its operating position.

Abstract: A floor-ceiling air circulating device includes a base adapted to be supported on the floor of a room, a duct assembly extending vertically from the base and defining a flow path between an upper outlet adjacent the ceiling of the room and a lower inlet adjacent the floor of the room and a flow path between an upper inlet near the ceiling and a lower outlet near the floor, and a fan associated with each flow path and housed in the base to stabilize the device. One of the fans draws air from the floor and discharges the air at the ceiling via one flow path and the other fan draws air from the ceiling via the other flow path and discharges the air at the floor such that the air drawn from the floor is replaced with air drawn from the ceiling and vice versa to thereby circulate the air at the floor and at the ceiling and reduce temperature stratification in the room.

Abstract: An apparatus for canning fruit and the like. The apparatus of the present invention comprises a platform having a plurality of legs thereon for placing it in a frying pan or other pan with the platform extending contiguous to the sides of the frying pan so that water placed in the frying pan will generate steam which will pass through holes in the platform. The platform is provided with a removable chamber which encloses a plurality of containers within the chamber and the chamber is provided with an outlet opening in the bottom thereof. The legs extending from the platform may also be passages for the admission of condensed steam back to frying pan and the holes in the platform may be provided with tubular passage means extending into the steam chamber.

Abstract: Method and apparatus for deep frying of chicken serving pieces in which the chicken serving pieces are immersed in cooking oil contained in a cooking chamber having a valve controlled discharge outlet at its lower end, and a filter unit within the cooking chamber through which the oil flows on being discharged from the chamber, in which, when filtering of the cooking oil is desired, the chamber is sealed as for pressure cooking and is connected to a source of compressed air for pressure discharging of the cooking oil through the chamber outlet, and thus through the filter unit, into a holding container located at atmospheric pressure conditions, after which the chamber is opened for cleaning purposes and cleaning and replacement of the filter unit.

Abstract: Opener for half-boiled eggs, comprising two parts, namely a lower half serving as a container for holding the egg and, an upper half serving as a means for tightening the hold of the egg opener on the egg; and a cutting blade which is preferably pivotably mounted on the top of the upper half. The lower half of the egg opener is preferably provided with a tension absorber on which the egg can be placed, while the upper half can be fitted with a safety blade-stop for preventing further movement of the blade after the egg has been sliced off.

Abstract: Pressure treatment apparatus for continuous web treatment includes a drum and a belt surrounding the drum almost completely with both drum and belt being movable with the web disposed in between. A pair of essentially semi-cylindrical sleeves are disposed about the belt as a supporting surface with a friction-reducing means, such as interconnected rollers, between the sleeves and belt to transfer force. The sleeve ends are spaced apart at two sides to permit passage of the web and belt while at the same time being urged together of both sides to impart a tensile force in the sleeve. This tensile force serves to exert a uniform pressure on the moving web substantially over the entire surface of the drum with the forces contained in a closed system and not loading the drum bearings.

Abstract: Hay and similar crop materials can be efficiently compacted and formed into pellets or cubes through a closely coordinated sequence of operations in which the hay picked up from the field is deposited into a feed bin, then advanced by gravity feed uniformly onto a cross feed conveyor which advances the hay through a compaction stage in which the hay is precompressed to bale density, and thereafter it is continuously advanced between a pair of counter-rotating press wheels which further compress and form the hay into dense pellets or cubes.

Abstract: An apparatus for automatically imprinting several lines of characters on the rounded head of each steel or like metal cylinder for a compressed gas. The apparatus includes work rest means arranged between loading and unloading platforms and adapted to permit a gas cylinder which has been transferred from the loading platform to rest horizontally thereon so as to be rotatable about its own axis. Several marking mechanisms movable relative to the work rest means each include an arcuate marking surface on which a line of characters is formed in relief. The marking surface of each mechanism is successively forced into contact with the gas cylinder on the work rest means, and the marking mechanism is then rotated in rolling contact with the gas cylinder to imprint the line of characters thereon. The gas cylinder that has been marked with the desired lines of characters is transferred onto the unloading platform.

Abstract: A printer comprising a supporting structure and a print disc having a curved peripheral surface with characters formed thereon. The print disc is mounted on the supporting structure for rotation about a rotational axis. Paper is moved over the peripheral surface in a direction generally parallel to the rotational axis, and one or more hammers cooperate with the paper and the characters for effecting printing on the paper. A guide generally conforms the paper to at least a portion of the curved peripheral surface as the paper is moved over the peripheral surface. This permits an entire line of characters to be printed and provides the paper with some rigidity against bending and an ability to extend generally vertically to permit the user to visually observe what has been printed. To eliminate noise during standby, the print disc is rotated through only one revolution in response to each print command.

Abstract: An on line high speed printer is described in which any of a plurality of non-printable characters can be printed as a preselected printable mating character. The printer control system includes a first circuit for detecting the presence of a selected one or group of non-printable characters in a line of data to be printed. A second circuit detects when a preselected printable character on the type member of the printer occupies a print position corresponding to the columnar print position of the detected non-printable character. The second circuit operates when the above condition occurs and actuates the printer and causes preselected printable characters to be printed in the columnar position of the detected non-printable character.

Abstract: A printing unit particularly intended for price labelling machines, comprising annular printing wheels supporting matrices at their outer periphery and equidistantly spaced notches at their inner periphery into which notches engages a rod to advance the wheels to forward the desired matrix to printing position. The printing pressure is obtained by an impact rod striking a shoulder formed on a pressure arm, the movement of which is transferred to the associated printing wheel forcing the intended matrix thereon against the place of printing. As the printing wheel is stationary during the printing operation the resulting print is sharp and clear.

Abstract: Stencilling apparatus for applying successive coatings to traveling web stock. The web stock may be advanced in successive wraparound turns to the same stencilling station. The adjacent turns are stencilled simultaneously at this station by a multipart squeegee in a multipart stencil frame, after each is placed in registry. The web tension in each turn of web stock is independently controlled by a pressure differential controller that retains a variable length loop of web under tension by a dynamic air flow pressure differential, which also causes a drying action of any coating on the web.

Abstract: A stencil screen printing press especially suitable for web stock, employing a stencil frame that rocks back and forth over a curved bed in a controlled relation to retractable web register means and to web directional control and advancing means.

Abstract: A stencilling printer with a flow coater specially mounted to sense viscosity of stencil fluid flowing from a reservoir between the flow coater and the squeegee, the flow coater being shiftable and operably associated with a supply of viscosity-altering liquid for controllably altering the viscosity of stencil fluid in the reservoir.

Abstract: Slit registry apparatus and method for registry of flexible, generally planar stock as for stencilling thereon, involving formation of periodic transverse slits and adjacent edges in the stock, at least one of the edges and the adjacent stock zone or area being offset from the plane of the stock for engagement of this offset edge by a registration surface.

Abstract: Web stencilling and drying apparatus for web stock with at least one intermittent feed stencilling station and slit registry means for stock therefor, a continuous feed ultraviolet drying station, and first and second dynamic flow pressure differential web controllers upstream and downstream of the ultraviolet drying station, the first one including sensors responsive to the length of the web loop therein to control web intermittently fed thereto and continuously fed therefrom.

Abstract: A hand printing stamp for transferring ink from an ink pad to a sheet of paper or the like, including movable portions on the printing face of the stamp so that different images may be reproduced from one stamp. In the embodiment disclosed, the movable parts include arms, legs and the head of a figure so that the figure may be reproduced in a plurality of articulated positions.

Abstract: A hand stamp comprising a transparent base through which a proof of the impression in substantial registration therewith is visable to the user. Individual handwork is eliminated by provision of selected stock size bases and a snap over channel which carries the impression.

Abstract: This invention relates to an improved apparatus and method for locking printing plates to a support, e.g., saddle or cylinder, wherein the support includes a body portion having at least two anchoring means as an integral part thereof, at least one of the anchoring means being incorporated on a spring-mounted bar movable under spring tension to engage and lock printing plates to the support. The invention also relates to apparatus and method for mounting printing plates onto a support comprising an actuating assembly for the spring-mounted bar and which is adapted to move the spring-mounted bar between expanded and compressed positions for the mounting. The spring-mounted bar actuating assembly is mounted beneath the peripheral surface of the support and comprises a pivot arm pivotable at or near its midpoint about a pivot block which is mounted beneath the peripheral surface.

Abstract: Directed thrusts are generated in rock by detonating explosive charges in groups of drill holes therein, the drill holes being aligned so that the maximum thrust from the substantially simultaneous detonation of charges in a group of holes is exerted in a direction close to one in which the rock has been found to be particularly vulnerable to failure, i.e., a direction that is at an angle of 60.degree. to a representative normal of a densely populated set of joints in the rock and that also is close to a direction of maximum principal tectonic stress should one be found.

Abstract: There is disclosed a spot welding device for spot welding metal parts by explosive force. The device comprises two plugs tightly fitted into a rigid tubular member and so spaced and shaped that a transverse substantially conical space is formed between the two plugs. This space is filled with a suitable explosive material which can be exploded by a detonator activated when desired by an igniter. The explosive force generated upon detonation of the explosive material produces a generally annular spot weld when the device is placed with one of its ends upon metal parts to be welded.

Abstract: An apparatus for providing ignition of rocket motors by using sequenced iiation to an explosive logic network that is fail safe in case of accidental initiation. The explosive logic network has a multiplicity of input detonators for ignition of the explosive logic in a predetermined time program which must be accomplished in a specific ignition sequence to achieve a single explosive output to ignite the rocket motor squib and fire the motor. A deviation from the predetermined timed sequence or ignition of one or more of the input detonators will dud the system causing a fail safe condition of the logic network that prevents rocket motor ignition.

Abstract: An electromagnetic generator for a projectile having a magnetic core, a coil system, a race duct and an element moveable in the race duct relative to the magnetic core for altering the magnetic field. An ignitable charge is provided for generating propellant gases which propellant gases cause at least initial movement of the element in the race duct.

Abstract: An explosive-train, arming-rotor type fuze mounted flush with the skin of a eapon wherein the arming rotor is doubly out-of-line in the safe position, and where both linear translation and angular rotation is required to align the explosive train in the armed position. A visual and tactile indicator is provided, the fuze being "safe" when it remains flush, and being able to become "armed" when the fuze protrudes from the skin of the weapon.

Abstract: A percussion-ignitable type tube primer has a closed end, thin walled metal tube, which is longitudinally indented over a portion of its length. The indention of the metal tube defines a convex anvil in the interior of the tube. The indented portion of the tube contains a percussively-ignitable primer mixture which ignites and deflagrates when the wall of the tube opposite the convex anvil is deformed by an impact or blow occasioned by a striking hammer or a pin. The primer is made by introducing a fluid paste of the primer mixture into the tube, indenting the tube and subsequently drying the primer mixture.

Abstract: A tow cart is provided with an arrangement in which the tow or drive pin is adapted to be moved out of engagement with the conveyor drive, in response to a predetermined degree of obstruction to the tow cart, by a spring-loaded overcenter double toggle movable from a cocked to a released position in response to the obstruction, and in which the drive pin is pivotally supported so that it may swing forwardly away from the conveyor drive upon the release. In the cocked position of the toggle mechanism the mechanism restrains the forward pivotal movement of the drive pin.

Abstract: A power and free conveyor system comprising a power track, a conveyor movable along the power track, a carrier track, a plurality of carriers movable along the carrier track and interengaging members between the coveyor and the carriers. At least one module is provided and comprises a body having hooks on a back wall thereof. The carrier has a generally vertical central frame extending downwardly including spaced side portions which are generally vertically aligned with the carrier track. An upper pair of arms extends transversely from the central frame and a cross bar joins the arms. The module extends between the side portions of the central frame with the hooks engaging the cross bar. A pair of lower arms extends transversely from the central frame and a bar between the ends of the lower arms engages the back wall of the module to stabilize the module.

Abstract: A tufting machine bed having an oscillating looper assembly in which the oscillating mass is counter-balanced by mechanism including a weight which oscillates about a pivot point in the bed in a direction opposite to that of the looper assembly. The oscillatory motion of the counter-balancing assembly is derived from the same oscillating shaft that drives the looper assembly.

Abstract: A method and apparatus for producing a multi-ply fabric or clothing material unit such as a shirt cuff or the like. A continuous strip of material is fed to a stitching head, and precut fabric pieces are placed on the strip at a positioning station in end to end relation to each other. The continuous strip conveys the fabric pieces through the apparatus. A side edge of each fabric piece is folded around a side edge of the strip by a folder and the folded piece is stitched to the strip by the stitching head. The continuous strip can be fed and stitched continuously or intermittently. The strip with the pieces stitched to it is fed to a cutter where the strip is cut into individual pieces along the ends of the fabric pieces. The cutter is actuated in response to sensing an end edge of a fabric piece sewn to the strip. Feed of the strip at the cutter is arrested by a blocking mechanism including a slip clutch, ratchet wheel, and pawl which blocks the feed so cutting occurs while the strip is stationary.

Abstract: A work guide apparatus for a sewing machine providing a plate moveable in guided engagement with guide means attached to a base surface of the sewing machine. The plate carries a work piece along a path of motion relative to the sewing machine needle, with plate movement being limited by adjustable stop means to correspondingly limit the stitching length. Gauge means extending across the plate accommodates positioning portions of the work piece in a selected spatial relation to a reference line on the plate to control the location of the stitching as required in tacking, pleating, measuring and sizing of draperies.

Abstract: A supporting member is removably attached to an upright presser bar of a sewing machine, and a zipper foot is attached to the supporting member so as to be removable therefrom. The position of the zipper foot on and with reference to the supporting member can be changed in direction transversely of the upright presser bar of the sewing machine, to thereby make it possible to move the zipper foot to positions in which the sewing machine can be used to sew a zipper, and to a position in which the sewing machine can be used for other work not involving the sewing of a zipper; this eliminates the need for removing the zipper foot at such times when the machine is not used to sew a zipper.

Abstract: An icebreaker having a cantilever forecastle from which is suspended one sliding carriage or a plurality of sliding carriages. Each sliding carriage mounts one planing tool or a plurality of planing tools with increasing depth of cut, in a tandem arrangement. The suspension means for each sliding carriage may consist of a linkage or of cables or booms. The one or several sliding carriages are yieldingly suspended and may be withdrawn into the ship's hull. The ice cutting operation may be assisted by vibrating the sliding carriage or supplying heat and/or pressurized water to the planing tools.

Abstract: A submersible object having a drag reducing coating thereon, and a method r its preparation, which comprises applying to the object a binding agent and sufficient hydrophobic silica to provide the object with a nonuniform coating, the function of the binding agent being merely to fix the hydrophobic silica on the submersible object.

Abstract: A device for handling a line or rope includes a fixed base. A release lever is horizontally pivoted at one end to the base. An upright bollard drum is, in turn, horizontally pivoted at the bottom to the release lever for restricted movement toward and away from upstanding pads on the release lever so as to grip and release a line or rope disposed between the drum and one or more of the pads. A hook is horizontally pivoted to the base and normally is spring-urged to hold the release lever against movement relative to the base but can be pulled by a lanyard to free the release lever and the drum thereon to pivot away from the base.

Abstract: A system of subaqueous excavation and material removal having the combination of a hopper dredging vessel, hopper barges with independent dumping capacity and a prime mover vessel such as a tug, each barge having a stern notch and a bow portion which is contoured to be received in a like stern notch of an adjacent barge so that two or more barges can be arranged and affixed into an assemblage, end-to-end with bow portions fitting and secured into the stern notches. The dredging vessel and prime mover vessel also have like bow portions whereby they can connect into the assemblage. Rapid and effective securing of the assemblage, the dredging vessel and prime mover vessel are obtained through pneumatic fenders attached to the sides of the stern notches and a pneumatically controlled cushioning fender couple attached to the stem which is received between vertical expansible fenders at the apex of the stern notch.

Abstract: This invention is directed to a marker which can be dropped from an airplane so that the pilot of an airplane can see the marker on the ground and know, when he is in the airplane, where the airplane has flown for spraying fertilizer, insecticides, herbicides, and the like. The drop marker comprises a base member of flexible corrugated board and a reinforcing plate attached to the base member. There is also a streamer material which is attached to the base member and which unfolds when the drop marker falls from the airplane toward the ground. The drop marker, upon reaching the ground and with the streamer unfolded, makes it possible for the pilot of the airplane to know where he has sprayed the chemical carried by the airplane.

Abstract: This invention has to do with a stock indicator which includes a strip that will take writing and erasure and which includes printed legends such as "Part No.", "Quantity" and "Date", each associated with blanks to be filled in by pen, pencil or crayon. Such a strip may be designed to provide a counter dial or dials, or may be associated with a separate strip or strips which provide a readily readable dial or dials. Associated with each such dial is a rotary indicator member manually operable step by step in one direction as associated items are withdrawn, and in the opposite direction when items are added or replaced. Indicator devices of this nature may be made at very small cost, and each can be permanently associated with a particular shelf section or bin, or transferred from one stock collection to another if reorganization is required.

Abstract: A binding machine for binding sheets in a stack by the application of glue along one edge of the sheets. The binding machine incorporates a manually operated clamp mechanism to hold the sheets together with sufficient compression to maintain the proper alignment of the sheets for the application of glue to the sheet edge.

Abstract: A dispensing tray for a glue machine is described which includes a glue reservoir in fluid flow communication, through an elongate narrow slot, to an open trough which at least partially receives a pickup roller of the glue machine in the operative position thereof. Glue within the reservoir is gradually dispensed through the opening or slot to replace glue which is removed by the pickup roller. The tray is pivotally mounted on the machine to permit movement of the tray from a substantially horizontal position wherein the reservoir and trough are substantially the same levels and a substantially vertical position wherein the reservoir is disposed below the trough for permitting flow of glue from the trough back into the reservoir through the elongate opening. Means are provided for maintaining the tray in the operative position during use of the glue machine and for releasing the same to the filling or storage position subsequent to termination of use of the machine.

Abstract: A development method and device for developing a latent image wherein an irregular surfaced vibrating bed transports toner particles from a supply area to the development area.

Abstract: A blender for blending a mixture of flowable materials, such as the carrier and toner components of a developer for an electrostatic processor, comprises a rotatable chamber having radially angulated passageways extending through its periphery for guiding the materials into and out of the chamber and internal axially angulated plates for cross-mixing the materials. The passageways are open, but the mixture tends to at least temporally dwell in the chamber and is, therefore, subject to a tumbling action, because the radial angulation of the passageways exceeds the angle of repose of the mixture. The internal plates impart an axial component to the movement of the tumbling mixture to provide cross-mixing of the materials.

Abstract: This invention is a screening apparatus for retaining small marine animals in a growing container connected to closed-loop aquaculture system. The screening apparatus comprises (a) a first plate; (b) a second plate about the same size as the first plate and substantially parallel to and spaced from the first plate; (c) a conduit passing through a centrally-located aperture in the first plate, the end of the conduit being attached to a face of the second plate, the corresponding edges of said plates being about the same distance from the outer wall of the conduit; (d) a fluid permeable material extending between the edges of said plates and enclosing said conduit by being snugly fitted at least around the periphery of the first plate; (e) the conduit having apertures around its circumference; and (f) a pump means for transferring a fluid through the conduit. The screening device is particularly useful in a closed-loop aquaculture system which includes a biological filter means.

Abstract: An automated milking assembly is disclosed for moving a claw and teat cup assembly under a cow for milking and for automated retraction of the claw and teat cup assembly upon completion of milking. A vertical arm is constructed for articulation and vertical reciprocation. The arm is hinged at its upper end about a horizontal axis disposed transverse of the cow and carries at its lower end the milking claw and teat cups. When the cow is in position to be milked, the vertical arm reciprocates downwardly and articulates to an arcuate disposition wherein the claw and teat cup assembly is supported under the center of the cow adjacent the bag. Manual plugging of the teat cups occurs and milking is commenced. When the cow is through being milked, the vertical arm reciprocates upwardly and articulates to a vertical disposition wherein the claw and teat cups are supported to the side of the cow out of the walking path of the cow.