Improvements in Weighing Machines
Year: 1896

page_text: Reprinted as amended in accordance with the decision of the Chief Examiner
dated the 26th day of August 1907.
(The Amendments are shown in erased and italic type).
Improvements in Weighing Machines
I THOMAS CROSSLEY Weighing Machine Maker of 16 Regent Street Blackburn
Lancashire do hereby declare the nature of this invention to be as follows:-
Usually the steels or bearings of portable weighing machines are fixed rigidly
into the frames of machines and in the case of portable scales no arrangements
are made to prevent the wear of the knife edges where they are subject
to vibration. I propose to fit the middle bearings into loose sliding castings.
A round bar with handle and cam arrangement passes across the machine under-
neath the loose bearings for the purpose of raising or lowering the beam on or off
its bearings. The plates or scale ends when not in use for weighing rest upon
brackets provided for the purpose of carrying the beam and scale ends when the
machines are carried upon carts or are subject to serious shocks
Dated thin 12th dor of Inno 1806
Im
men
Weigning
THOMAS CROSSLEY Weighing Machine Maker 16 Regent Street Blackburn
do hereby declare the nature of this invention and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :-
Usually the steels or bearings of weighing machines are fixed rigidly in the
frames and in the case of portable machines no relieving arrangements to prevent
the wear of the knife edges where they are subject to vibration are made
I propose to fit the middle bearings into loose sliding castings.
A round bar with handle and cam arrangement passes across the machine and under-
neath the loose castings for the purpose of raising or lowering the beam on or off
its centres or bearings. The plates or scale ends when not in use for weighing rest
upon brackets provided for the purpose of carrying the beam and scale ends when
the machines are carried upon carts, or are subject to severe shocks.
The accompanying drawings are in illustration of my invention.

page_text: Fig. 1. A is a loose sliding casting or block, working into V shaped slides B B, a
round bar C is fitted with cam D, the cup I is fitted to scale plate, and the bracket J.
is fixed to framing of machine
Fig. 2. B. B. B. B. shows the V shaped slides. C is the round bar, D. D. are the
cams, E is the handle for actuating the cams, F F are the caps for keeping the bar
and cams in position J J are brackets fixed to framing to steady the scale plates.
Fig. 3. is a front elevation of caps shown in Fig 2, at F F.
Fig. 4. shows the loose block A, the bar C, the cam D; and the cap F in section.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is
I-In-a A weighing machine in which the-fitting-of the steels or bearings are fitted
into loose sliding blocks, actuated by a H-A bar or shaft provided with cams and
handles for-aetuating-the-loose sliding-blocks. and in which III-The-use-of cups
and brackets are provided to suspend and prevent the scale plates and beam
sliding when not in gear, substantially as and for the purpose described and
shewn on the drawings
Dated this 21st day of December 1896