Manufacturers Index - John T. Hepburn, Ltd.
John T. Hepburn, Ltd.
Toronto, ON, Canada
Manufacturer Class:
Metal Working Machinery
This page contains information on patents issued to this manufacturer.
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170,027
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Jun. 06, 1916
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Single purpose heavy duty lathes
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John T. Hepburn |
ON, Canada |
"This invention relates to lathes intended particularly for shell turning or other heavy duty work of one class, and my object is to devise simple, strong and powerful means for feeding the saddle carrying the tool carriage to provide for a quick return and for automatically stopping the lathe spindle and the feed at any desired point of travel of said saddle." |
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380,481
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Apr. 04, 1939
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Lathe
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John T. Hepburn |
ON, Canada |
"This invention relates to new and useful improvements in lathes and like products and the object of this invention is to provide a lathe which will be easily, efficiently and quickly operated by semi-skilled labour to produce shells or like products which require to be machines to very close limits with respect to the dimensions..." |
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380,482
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Apr. 04, 1939
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Lathe
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John T. Hepburn |
ON, Canada |
"This invention relates to new and useful improvements in lathes and the like and particularly to lathes which are used in the manufacture of shells. In manufacturing shells, they must be prepared to receive a copper band in their wall in proximity to their base. This consists in cutting a dovetailed recess in the wall and between the sides are a plurality of projections which are preferably parallel to one another but vary in distance from the sides of the recess. This operation is called waving... It is the object of this invention to provide simple and efficient means to perform this operation of cutting the dovetailed notch and the waving simultaneously in a comparatively short time with the minimum amount of exertion on the part of the operator..." |
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380,483
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Apr. 04, 1939
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Lathe
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John T. Hepburn |
ON, Canada |
"This invention relates to new and useful improvements in lathes and particularly to lathes used in the manufacture of shells. In manufacturing shells they must be a predetermined weight when finished and it is usual to weigh them before they form the recess in the base. The inspector or party weighing the shells marks in any suitable manner on the shell the excess weight. This mark is used as a guide in the finishing of the product as the shell is practically finished and the final operation of recessing and finishing the base allows the operator to set the machine to take off the necessary metal to bring the shell to the correct weight. The amount of material to be machined off per millimeter of base thickness bears a certain relationship to the weight in grammes and in my invention, I make use of this relationship to set the machine for making the necessary cuts..." |
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380,484
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Apr. 04, 1939
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Lathe tool feeding device
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John T. Hepburn |
ON, Canada |
"This invention relates to new and useful improvements in machine tools and particularly to single purpose lathes generally used in the manufacture of shells or the like. The main object of the invention is to provide a simple, adjustable, tool feeding device, easily controllable, for feeding the tool toward the work to be performed and to feed same evenly..." |
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407,482
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Sep. 29, 1942
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Elongated article loading device
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John T. Hepburn |
ON, Canada |
"This invention relates to a device for loading elongated articles into lathes and the like. The device according to the present invention is designed particularly for use in shops for loading heavy gun barrels, shafting or the like, into lathes or other machinery..." |
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407,630
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Sep. 29, 1942
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Driving control unit for lathes
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John T. Hepburn |
ON, Canada |
"This invention relates to driving control units for lathes and the like. In a great majority of cases industrial machinery at the present time is driven by electric motors and it is usual to have an electric motor mounted on machine units to drive them. However, in cases where the electric power fails, or where, for instance, such as in time of war, electric power installations have been destroyed, considerable difficulty is experienced since whole plants may be stopped through lack of power for operating the machinery and may be stopped for a considerable period of time... It is an object of the present invention to provide a driving control unit which may be bodily mounted upon industrial machinery in place of the motor so that the machinery may be quickly readjusted to be driven by other power means such as a diesel motor. A further object of the invention is to provide a complete unit of the character referred to incorporating a driving and idler element with a means for readily shifting the transmission from the power source of one to the other..." |
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420,604
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Jun. 06, 1944
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Cutting and boring mechanism
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John T. Hepburn |
ON, Canada |
"While the present invention may be applied widely it is convenient to illustrate it by reference to the boring of breech blocks for large calibre guns." |
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3,980,252
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Sep. 14, 1976
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Wire rope spooling mechanism
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Margus Tae |
ON, Canada |
"An improved spooling device is provided having a drive shaft defining a track including conventional double helices which are connected at their ends by parts of the track having any suitable curved or straight contour. An assembly on the drive shaft is made to reciprocate by engagement." |
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4,476,801
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Oct. 16, 1984
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Mooring device
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Colin Rich |
ON, Canada |
"A mooring device is secured to a sea-going vessel to handle anchor line of the type having an upper length of wire rope in series with a lower length of chain cable. The mooring device comprises a traction winch for handling the wire rope and a windlass for handling the chain cable." |
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Mooring device
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Derek Foster |
ON, Canada |
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4,690,049
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Sep. 01, 1987
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Hydraulic press with side slab guided upper platen
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Leon Malashenko |
ON, Canada |
"A 2000 ton hydraulic press which can be conveniently retrofitted for platen parallelism control has a conventional support structure which includes a base, a pair of side slabs and a cross-head. A lower platen is fixed to the base structure, and an upper platen is guided on the side slabs for vertical movement towards and away from the lower platen. Short-stroke, large bore compression-phase hydraulic cylinders are mounted within the lower platen, and have piston rods extending vertically through an upper surface of the lower platen. A vertical post is supported from each piston rod, and travels through an aligned vertical passage provided in the upper platen. A pair of long-stroke, narrow bore hydraulic cylinders permit the upper platen to be advanced quickly towards the lower platen to close the gap between the platens. Shoulders formed on the posts (all horizontally aligned when the compression-phase cylinders are fully extended) define a stop locating the upper platen a predetermined distance above the lower platen. Locking mechanisms mounted on the top of the upper platen can then be engaged with recesses formed in the posts to lock the upper platen to the posts. The compression-phase cylinders then draw the posts downwardly, moving the upper platen towards the lower platen and permitting a work-piece to be compressed between the platens." |
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4,694,744
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Sep. 22, 1987
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Hydraulic press without conventional side slabs and cross-head
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Leon Malashenko |
ON, Canada |
"A 2000 ton hydraulic press is designed to eliminate the side slabs and substantial cross-head associated with conventional presses. The press simply has a base that includes a lower platen and bolster plate. Four vertical posts extend upwardly through the lower platen bolster plate..." |
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Hydraulic press without conventional side slabs and cross-head
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James Hepburn |
ON, Canada |
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4,722,293
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Feb. 02, 1988
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Integrated winch and windlass
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Ronald Ballantyne |
ON, Canada |
"An integrated winch and windlass for hauling in and paying out a mooring line which consists of wire rope serially connected to chain cable is described. The integrated system has a pair of traction winch drums for conveying the wire rope, and a chain wheel for conveying the chain cable." |
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Integrated winch and windlass
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Derek Foster |
ON, Canada |
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4,759,280
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Jul. 26, 1988
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Hydraulic press with adjustable platen clearance
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Leon Malashenko |
ON, Canada |
"A hydraulic press has a frame including a crosshead formed with a vertical passage. A lower platen is fixed to the base of the frame, and an upper movable platen is located between the crosshead and lower platen. Light-duty hydraulic cylinders move the upper platen between an operating..." |
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4,819,555
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Apr. 11, 1989
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Hydraulic press with adjustable platen spacing
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Leon Malashenko |
ON, Canada |
"A hydraulic press is adapted to permit adjustment of the clearance between upper and lower platens and to permit the press to be divided into distinct upper and lower sections for purposes of transport..." |
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Hydraulic press with adjustable platen spacing
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Ronald Ballantyne |
ON, Canada |
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4,828,474
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May. 09, 1989
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Hydraulic cylinder device for platen spacing indication and control
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Ronald Ballantyne |
ON, Canada |
"A press has upper and lower platens which can be moved towards and away from one another. Four hydraulic leveling cylinders are mounted in a vertical orientation on the lower platen for purposes of platen parallelism control..." |
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4,836,125
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Jun. 06, 1989
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Anchoring system for floating structure
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Martin Murray |
ON, Canada |
"An anchoring system for semi-submersible drill rigs is described which includes a wire rope-chain cable anchor line and in which system components co-operate to convey the junction of the wire rope and chain cable smoothly over a fairlead sheave..." |
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Anchoring system for floating structure
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Ronald Ballantyne |
ON, Canada |
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4,841,898
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Jun. 27, 1989
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Anchoring system for floating structure
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Ronald Ballantyne |
ON, Canada |
"An anchoring system for a floating structure is described. The anchoring system is of the type which employs a combination anchor line consisting of a lower length of chain cable connected to an anchor and an upper length of wire rope and which involves disconnection of the wire rope from..." |
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4,862,821
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Sep. 05, 1989
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Mechanism for tensioning a moving chain
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Ronald Ballantyne |
ON, Canada |
"In an anchoring system for a floating vessel which includes an anchor line comprising chain cable, a chain locker and a windlass having a chain wheel that conveys the chain cable during paying out from the chain locker, a mechanism is positioned between the chain locker and chain wheel..." |
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5,088,400
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Feb. 18, 1992
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Adjusting press platen clearance
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Andrew Ferguson |
ON, Canada |
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5,156,782
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Oct. 20, 1992
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Maintaining press platens in parallel relationship
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Ronald Ballantyne |
ON, Canada |
"Press platens are maintained parallel in critical central regions proximate to a mold between the platens. Leveling cylinders acting between the platens to resist downward action of a central ram on a movable platen..." |
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5,237,916
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Aug. 24, 1993
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Regenerative hydraulic cylinders with internal flow paths
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Leon Malashenko |
ON, Canada |
"A regenerative hydraulic cylinder has a piston dividing its interior into a pair of chambers. A rod extends from the piston through a cylinder end wall. Several axial passages in the piston extend between opposite piston faces..." |
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